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2.
the 21st century definition of a beer keg.
you goin' to Delta Sig's rush party Saturday night? I hear dey be invitin' some hoes and plan on havin' 10 casks of keystone light.
by tim-tim April 23, 2004
 
1.
The replacement of the wine bottle. Pretty much a foil bag with a tap. Usually contains cheap wine. Popular drink for bums, aboriginals and teenagers as it is inexpensive and the bag can be inflated and used as a pillow.
Damn look theres a huge pile of silver!
No thats the Mullangutta tribe sleeping on casks
by ohwefoh September 28, 2006
 
3.
A cask is a cat dollar.
Cat 1 - Yo, I'll lick yo butt fo 3 casks!
Cat 2 - I can't, I already owe you 20 casks for last night!
by Hyper-pooper July 29, 2009