cracking a fat 

if one is said to be cracking a fat, they are gaining an erection

When i saw Burnsy's Mum i cracked a fat

cracking a fat by Don Gulliver April 7, 2003

Cracking egg 

When a trans person realizes that they are trans.

Person 1: You know, after looking at Egg_IRL, I realized I'm trans.
Person 2: So you have a cracking egg?

Cracking egg by a guy named Hashbrown March 27, 2022

cracking up

laughing mad hard. Almost to the point of crying. Laughing you split ends off. more than giggleing or laughing

Guy 1: hey, whats wrong wiff aly?

Guy 2: Oh we where talking about how disgusting Michelle's nose is and then she started cracking up

cracking up by Petrusha July 1, 2008

Cracking Stick 

When one jerks off

My mom caught me cracking stick to the new Victoria secret magazine.

Cracking Stick by BRIjohn March 3, 2014

Cracking it 

Undertaking sex work, working as a prostitute. (1970s Australian slang)

Sarah is cracking it for money to buy drugs.

Cracking it by Dr Merkin January 13, 2009

cricketing 

The movement of a girls legs rubbing together when she is extremely horny and can do nothing about it, similar to the movement of a crickets legs when they chirp.

Did you see the girl in mythology class? she was cricketing the entire class period. i wonder what she was thinking about.

cricketing by Bam 9 August 22, 2010

cracking 

Something sensational, excellent or cool.
Part of 'what's cracking'.

"That was a cracking pool shot!"
"Yo, 'what's cracking' fool?"

cracking by Diego July 17, 2003