(verb)- To hook up with a person in the top bunk of a bunk bed. Can be modified into a double-bunk if there is another couple hooking up on the bottom bunk.
Typically occurs in a college dorm setting.
Can be abbreviated "TB"
Did you hear? Mark top-bunked that girl he was dancing with at the party last night!
No way! Please tell me.. was Steve was there too?
Yep. It was a classic double-bunk.
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