chin music

Meaning

Noun

• A fastball thrown near the batter's chin, often to set up a subsequent pitch thrown low and outside.
• A bouncer aimed near the batsman's chin.
• Idle talk; chatter.
• Rhythmic singing, usually to nonsense syllables, in a style partly inspired by the instruments used to accompany folk dancing in Irish and Scottish traditions.

Origin

• The name jokingly refers to "playing" the mouth as if it were an instrument.