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The act of two or more males keeping trying to keep an erection down for the longest time. The first one with an erection loses.
Dude, i won the bone-off last week against billy.
by blackdemon December 12, 2009
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2
Frogge- "bro can i have an extra nug in my share?"
Tom- "Bone off bro, you have enough!"

or
Chris " Can i have some of your guy's pizza?"
Ren " Bone off , I bought this. Sad!"
by bigshmoke6969 October 16, 2017
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