This is when a guy has his balls out and they are smashed between someone's(Usually a girl) ankles. Each testicle is hit from the side by one ankle and then smashed together.
I had my balls out the other day so my girlfriend could play with them, and then she bo knockers boo didleyed me so hard that i cried.
by PasteyPatsey January 18, 2010
Get the Bo Knockers Boo Didleymug.