crack a fat

vulgar slang To have or get an erection of the penis. Primarily heard in Australia. Many pubescent boys are teased for involuntarily "cracking a fat" in public as their bodies change in unfamiliar and sometimes uncomfortable ways.

Common Names:

Name	Pronounced	Usage
Lisha	LISH-ə	English
Chamberlain	[tʃeimbəlin]
Simone (1)	see-MON (French)	French, English
Filipa	fee-LEE-pah (Polish)	Portuguese, Serbian, Croatian, Polish
Erasyl	-	Kazakh
Lagle	-	Estonian