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1.
A prisoner who has sex in exchange for candy bars, soda or snacks at the canteen. Insulting term for a stupid or weak man or a homosexual.
Shit, don't pay no attention to Jimmy. He's nothing but a canteen punk, blow ya for a snickers bar.
by Anonymous November 08, 2002
 
2.
A device consisting of several sharp spikes for temporary holding of a variety of vegetables before preparation for cooking.
Grab another spud off the canteen punk will ya?
by EH? June 20, 2004