1. noun, vulgar slang A blow to a man's penis or crotch. "Pecker" is a vulgar slang term for a penis. Primarily heard in US. I threatened to give him a pecker slap if he didn't keep his hands to himself.
2. verb, vulgar slang To strike or deliver a blow to a man's penis or crotch. Primarily heard in US. You shut your mouth, you hear? Don't make me pecker slap you!
1. n. an act of striking a male in the genitals. She pecker slapped him and watched him writhe in pain.
2. tv. to strike a make in the genitals. We’ll pecker slap those guys with every dodge ball we throw.