Monster cockadoodledoo 

Sex as the sunrises

Me and shana did the old monster cockadoodledoo this morning

Monster cockadoodledoo by Mastercaboose June 25, 2016

monster shlong 

(noun).
a large penis extending horizontally outward from the body for an abnormally long distance.

Sarah: my monster shlong is so big it could knight someone.
Carol: well my monster shlong is so big it could besiege a castle.

monster shlong by sarah and Carol December 31, 2020

Monster Girl Island 

The only place where you can have sex with different monster girls in 3D.

Person A I wish I could fuck a shark...

Person B Have you heard of MGI?

Person A MGI? What is that?

Person B Monster Girl Island, you can fuck different Monster Girls there, including a shark with huuuuuuge abs.

Person A Where can I find that?

Monster Girl Island by No_one_of_concern April 26, 2022

Monster Fuckin Chillinz 

The highest level of 'chillin.' Also known as MFC for short.

What's up?

Oh, I'm just monsta fuckin chillinz right now.

Monster Fuckin Chillinz by Jsuave August 23, 2003

Monster Mash 

Two ugly people having sex.

Dude, I'd hate to imagine your parents doing the monster mash.

Monster Mash by John Knopp April 25, 2006

Monster Jam

Monster Jam is motorsport event tour through the United States. Although events may vary, the general attraction is the racing and freestyle competitions by monster trucks hence the name, Monster Jam. Similar to Nascar, Monster Jam is very popular among rednecks and pre-pubescent boys.

Bobby Joe' s girl may think his beat up old Chevy and fisherman's tan sure are sexy and listening to Florida Georgia line is just the coolest, but they ain't nothing gets her hotter than an authentic redneck party like the Monster Jam.

Monster Jam by Eaton Holgoode March 13, 2015

monster cheese

slang for semen.

"That wasn't muenster cheese in your chili. It was my monster cheese."

monster cheese by p_time February 3, 2009