Top Definition
White ring formed around a person's mouth similar to a clown (Bobo) from the type of chap stick made for 80s lifeguards. Tends to leave white, visible residue similar to those seen after the climax in clown porn scenes.
Dude what's up bobo cum ring? What's all over your mouth? Did you just blow a clown?
by The Widge February 11, 2010

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