A very small penis
Everyone has a millimeter monster until puberty.
I heard that guy got dumped because of his millimeter monster.
I heard that guy got dumped because of his millimeter monster.
by JAC7272 April 28, 2014

Female pubic hair that reaches 1-1.5 inches below the belly button, depending on body type. Reminiscent of a dark colored shag carpet sample and not to be confused with a happy trail.
Yo man that girl i got with last night had a serious monster muff, im talking serious poof ball afro puff steez.
by olympicmuffdiver December 9, 2009

When a female innocently lays her head in your lap, but your interest is in other things. Alas, the rise of the ear monster.
by tedomega July 7, 2010

A term used in in the Northwestern Pennsylvania region that is synonymous for a game of hide-and-seek.
Let's play a game of Keegan Monster! Steve, you go hide, and I will be Keegan Monster and come and find you.
by LeonardDavis November 24, 2020

by BekVicious December 18, 2009

I had no time to eat lunch, so I had a bag of chips and 2 granola bars today like a true snack monster
by Whaler Jake November 13, 2014

by Robot Jefferson September 29, 2010
