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

by Don Gulliver April 7, 2003

Crackin' a Fat

Cracking a big boner. See erection

1.That chicks arse is so damn nice...I'm crackin' a fat!
2."Let's watch some porn".."What, just so you can see me crack a fat?"

by UberJordan March 3, 2004

cranking a fat shit

When your taking a dump but the poop is so big it hurts your butt hole when pushing it out.

Friend:*knocks on bathroom door*
Me:Wait a minute I'm cranking a fat shit out of my ass.
Friend:Understandable have a nice day.

by Swagmaster6969696969696 December 3, 2020