crumpin 

a dance that started appearing in LA clubs, which was originally done by clowns (no lie!). it was popularized in the missy elliot video, "i'm really really hot."

damn look at them kids crumpin on the floor.

crumpin by tre September 11, 2004

Crumpin Off 

The act of shamelessly pleasuring ones self in the bathroom at your place of employment. If you’re good enough for a stall you’re too good to be Crumpin Off

“Did you hear dean was Crumpin Off?”

“Yeah dude was beating his dick at the urinal.”

Crumpin Off by Neil Cicierega August 11, 2018

crumpin'

Expressing your blackness through out of control body movements, to much for a white person to handle

he wuz crumpin' so hard last night, all them crackas were staring

crumpin' by Gavit January 7, 2010

Crumpin'

1) When your girlfriend or any other girl of interest including a potential bang or even your mother starts bitchin, complaining, nagging, or failing to know her role. In most cases, there is no reason for this act of crumpin and it usually comes out of nowhere.

2) Any annoyance or complaint that comes out of a female's dirty mouth.

3) An accumilation of bitching. Even if your best friend is complaining you can tell him, "Stop crumpin. You sound like my girlfirend."

Girlfriend: "Where are you. I thought we were supposed to eat lunch together today. Seriousy, I'm getting sick of this. Whaaa Whaaa Whaaa."

You: "Bitch...stop your fuckin crumpin'. I'm playin (insert your game of choice {ex: FIFA/Madden} here.) I'll see you later."

Crumpin' by Andrew and David December 23, 2007

Booty Crumpin' 

The instance of a set of buttocks jiggling uncontrollably, esp. during sex.

Ben: "That looks like some booty crumpin' to me, man."
Chris: "Oh fuck, yeah."

Booty Crumpin' by mckrider November 6, 2009

Cumupin 

An English dessert. Often used in the context of claiming revenge.

Bloody Alexia will get her Cumupins. That shitfaced, uncivil supervisor.

Cumupin by ThatsR!ght. October 29, 2008

Crumpin' Fuglies 

When two SERIOUSLY ugly people have sex.

The darker side of "bumping uglies"

Q: Where's Fat G.?

A: He got all boozed up and went home with that nasty chick who was hanging all over him. They're probably crumpin' fuglies as we speak.

Crumpin' Fuglies by da' guv January 8, 2011