Another term for crabs, an STI characterized by small pubic lice inhabiting ones happy forest down bellow. The "blunder" was having sex with that cheap gas station hooker, and the "bugs" are the little present you get to take home.
Eric: Dude, I was down at the 7-11 yesterday and I met this girl named Destinie

John: And now your dick wont stop itching as though your underwear was suddenly made of steel wool?

Eric: Yeah, how did you...?

John: Blunderbugs, broseph. Go get some good shampoo
by Garblesnarf May 25, 2011
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