To take, mooch, or just steal anything you see fit without concern towards others. The term was originated by Pauly "The Weizel" Shore back in the 80's.
(Hindu Clerk): What are you doing?!
P.S.: Cashmir, Rashnish, Chill alright. Me 'n Link were cruisin' up to the mountain and thought we'd stop by and weize a little ju-uice(Proceeds to stick his head under the slushy machine and drink to his hearts content)