吹口琴

chuīkǒuqín
  1. (figurative, slang) to perform oral sex on a woman
  2. (literally) to play the harmonica
  3. to perform oral sex on a woman
  4. to play the harmonica

Wiktionary

Entry Composition

1 吹口 chuīkǒu
  1. (music) mouthpiece (of a wind instrument)
  2. mouthpiece (of a wind instrument)
=2 琴 qín
  1. guqin 古琴 gǔqín (a type of zither)
  2. musical instrument in general
=2 琴 qín variant of 琴 qín, guqin or zither