Slang for a little hamburger, like the ones served at White Castle or Kristals, because of their size. junk food fast food puke food hamburger slider
Bert, "I'm really hungry, but you know I don't cook."
Ernie, "Wouldn't do you any good if you could; there's no food in the house."
Bert, "Let's go to White Castle for a beefcookie. That would taste yummy."
Ernie, "Good idea, except neither one of us has a car."
by newsitian February 28, 2006
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A small gathering of boys when there is nothing going on partywise. Usual consists of ping pong and knee hockey.
Yo Stef, wanna go to ben's beefcookie?
by charles lindbergh February 23, 2006
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