Human malemasturbation; so called because stroking the erect penis resembles, albeit tenuously, the action of removing scales from a game fish in preparation for cooking
Dude, that stripper gave me blue balls. I'm going in the crapper to think about her and scale the bass, then calling it a night.
When a kid in junior high, usually the one relegated to triangle or wood block, throws pennies at the bass drum to give the sonic impression the bass drummer played off beat
He got kicked out of band again for throwing pennies at the bass drum The bass drummer said nothing but his own shit eating smile gave him away.