Top definition
Penis bum bum is used to describe someone who is both a dickhead and/or ass hole, penis bum bum sounds far less offensive then both of these but means a great deal more.
"Omg stop annoying me!"

"No it's funny"

"GOD you're such a penis bum bum!"
via giphy
by Stoner.Babe98 April 25, 2017
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