Top definition
A piece of cloth or plastic that is intended to keep ejaculate from staining clothing during/after fellatio.
Next time, I bet that Bill insists that Monica wears a knobster bib so that he can easily dispose of the "evidence."
by iam2eeyore November 19, 2009
Get the mug
Get a Knobster Bib mug for your coworker Bob.
Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
Get the mug
Get a jabbed mug for your dad James.