"That's Mama Pure Concentrated Anti-Uctions to you, Superbork!" Mama Luigi
According to the Society of Poop, liked baby shaking, screaming, and falling for hours. He was a split personality of Mario's brother, Luigi. He was born from pure hatred, brewed by Law for kids in an effort to stop people for standing in no-parking zones. (S)he also hated sex, so she was actually fairly tolerable most of the time.
On 10 January, 2017, his voice actor, Tony Rosato, died of a heart attack.
One day, Mama Luigi had to babysit a spoiled brat together with Mario, the child escaped and got killed when he fell into a lava river, the frustration caused Luigi to materialize his rage into the beast known as God Luigi.
Mama Luigi has had many minions at his disposal, examples being Ganon, Bill O'Reilly, and the SilverFatMagician. Mama Luigi also implemented a stronghold on the internet, spawning abominations such as Yaoi, Sonic Fancharacters, Mudkipz, and Pop-up ads (Some refer to this as the "Internet Hate Machine"). The program seems to randomly choose the website it will rest in, although most of the time it resides in the #chan boards, Gaia Online, Runescape, Myspace and YouTube (Which explains the strange behavior of the people that reside in these areas.)
Some of the time, Luigi was able to subconsciously control Mama Luigi, and use this precious time to tell Yoshi a historically revised version of the time he first met him. He was able to do this by using his control of Anti-Uctions, and copyright infringement. For more information regarding the creation of Mama Luigi, see Big Poop Theory (or check out the enclosed instruction book).
Although being a split personality of Luigi, Mama Luigi was Luigi's final form. He liked to tell people about his title, correcting them, mothering Yoshkins, and saving the Princess. He seemed to have an obsession with a strange Magic Balloon and bagels. Mama Luigi also enjoyed telling twisted lies and falling onto Skull Rafts, which to him were Good Medicine. She was also a pedophile and necrophile. One time, after being bored of Mario's repeated asks of bring a secret weapon, she got pissed off and turned into Mama Frusciante and told Mario to "get out of my show, motherfucker. " He was also a renowned jumper, able to hit ceiling light switches with her pelvis. It is interesting to notice that Mama Luigi had a master who transformed her/him into Super Dimentio.
Sometimes, Mama Luigi would lie to people and tell them he's going to wring out his cap, when really he would strip naked and go streaking. This can cause bystanders to have heart troubles or even die.
Mama Luigi had some psychological issues, namely paranoia and a deadly fear of giant caterpillars. He would often scream "HHHHHHHEEEEEEEEEEEAAAAAAAAAAALLLLLLLLLLLPPPPPPPPPPP!!!!!!!!", even when no caterpillars were around. To vent his anxiety, he painted a portrait called The Scream, which most people incorrectly think was painted by Edvard Munch. In fact, if you look closely at the background during a full moon on a Tuesday, you can see Yoshkins and some Wigglers.
Celebrity Status and Turmoil
It has been officiated that Mama Luigi was indeed a Spice Girl honing the name, Mama Luigi Spice. Due to turmoil within their old record label's marketing staff, Mama Luigi did not receive a Spice Girls Doll contract as did the other girls. Unfortunately, Mama Luigi has confirmed that she is not going to be touring with the Spice Girls when they go on the "back together" tour, due to criminal charges against her for man slaughter, since her bagel rings gave people cancer, and killed several of them.
Aside from having had the power to correct his victims, he had also proven to be a good swimmer (And can additionally summon dolphins on a whim) and had memorized the mapping of the Mushroom Kingdom. He also would ear rape anyone if he got pissed off way too much (which would kill anyone within 50 Kilometres in the vicinity).
She also had some skills with electronics, which she used to start a company in China to make Bagel Rings. This ultimately failed, since the bagel rings gave people cancer from Anti-Uctions radiation, which caused a lawsuit.
The Birth Season
Mama Luigi's eggs were recently fertilized by Gay Luigi, Mama Luigi is currently the carrier of 30 fetuses and 180 STDs. Big Boss's next big mission is to destroy Mama Luigi's womb before he gives birth. Since Mama Luigi is the Queen of AIDS, this will be difficult.
Mama Luigi Mama Luigi
Nothing below but boiling lava! Good thing I found a magic balloon!
Mario, wherever you are, HEEEAAAAAAAAAAAAAAAAAAAAAAAAAAALLLP!!!!!!!!!!!!!!!
This kid makes Mario looks like he's on a diet!
That'll teach ya to mess with my new lil' buddy Yoshi!
Uh, good night Yoshi! Ahhbahhbabahbaba.
- Luigi has shown some hints about wanting to return to his Mama Luigi form in some current games. 
- Owned a restaurant in Chicago (see below).
Mama Luigi's Spaghetti - Mama Luigi's response to Papa John's Pizza, founded after Mama Luigi's restaurant (above) didn't fare very well. Motto: Better 1-Ups, Better Spaghetti!