Top Definition
The act in wich one heterosexual male shares the same bed with another. Most often caused by lack of choice.
Alex: "Last night at steffani`s party I got so wasted I had to sleep over. Thing was, Henry also got his liver in a knot so we had to share the only bed there."

Michael: "You went Bro`Bunkin! Any Broner?"
by Rangourthaman January 25, 2009
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