chop

3
[ chop ]
/ tʃɒp /

noun

Usually chops. the jaw.
chops,
  1. the oral cavity; mouth.
  2. Slang. the embouchure or technique necessary to play a wind instrument.
  3. Slang. musical ability on any instrument, especially in playing jazz or rock; technical virtuosity.
  4. Slang. the music or musical part played by an instrumentalist, especially a solo passage.
an entranceway, as into a body of water.
Horology. either of two pieces clasping the end of the suspension spring of a pendulum.

Idioms for chop

Also chap.

Origin of chop

3
1350–1400; Middle English; perhaps special use of chop1

British Dictionary definitions for bust chops (1 of 3)

chop 1
/ (tʃɒp) /

verb chops, chopping or chopped

noun

Word Origin for chop

C16: variant of chap 1

British Dictionary definitions for bust chops (2 of 3)

chop 2
/ (tʃɒp) /

verb chops, chopping or chopped

(intr) to change direction suddenly; vacillate (esp in the phrase chop and change)
obsolete to barter
chop logic to use excessively subtle or involved logic or argument

Word Origin for chop

Old English ceapian to barter; see cheap, chapman

British Dictionary definitions for bust chops (3 of 3)

chop 3
/ (tʃɒp) /

noun

a design stamped on goods as a trademark, esp in the Far East

Word Origin for chop

C17: from Hindi chhāp