Mammoth GY 

It's a meme regrading a card in Yu-Gi-Oh! Called "Mammoth Graveyard" as Konami's 2017 Series 10 PSCT changes "Graveyard" to "GY" in card text.

Mammoth GY

Forbidden GY

Mammoth GY by Chadook August 22, 2017

Mammothrept

a spoiled brat

"U see lil pump over there?"
"Yeah hes such a mammothrept"

Mammothrept by lol just kys January 31, 2018

Mammoth Lakes 

A mountain town in California that gets it's reputation from having a ski resort. People think that Mammoth is fun in the winter but they don't know much about the amazing summers. So many outdoor activities for individuals and families. Hiking, fishing, sight-seeing, mountain biking, sunbathing, swimming, etc.

Move to Mammoth Lakes for the winter; stay for the summer.

Mammoth Lakes by passionateaboutsummer May 24, 2018

mammoth cooter 

A bad bitch with a large cooter, often time may have a Camel toe.

Yo that girl got a mammoth cooter

mammoth cooter by Mammothmomma August 30, 2020

Mammoth 

An entity that is as old as time and provides quite the stylish winter coat. Large in size and extinct since the ice age.

"Yo, your mom looks like a mammoth."
"If only she was a little uglier I wouldn't have had to been born."

Mammoth by Uncrowned King June 17, 2021

MammothMoth_ 

The hottest Instagram user ever. Has a painfully fat ass and her breasts are so big she can't see over them.

Douche 1: Hey, have you seen that really hot girl on Instagram?

Douche 2: MammothMoth_? Of course I have. Everyone's talking about her.

MammothMoth_ by MammothMoth June 28, 2021

Mammoth Man Milkers 

This term describes an abnormally large amount of breast tissue on a man.

God daaaaamn that guy's like 400 ass pounds and he has some mammoth man milkers!

Mammoth Man Milkers by coffee_by_the_pot November 27, 2021