Definition of felch in US English:

felch

(also feltch)

verb

US
coarse slang
  • with object Usually of a homosexual man: to stimulate the anus of (a sexual partner) orally; specifically to remove orally semen ejaculated into the anus of (a partner). Also: to insert a small animal, especially a gerbil, into the anus of (a partner) for sexual stimulation.

Origin

1970s. Origin unknown.

Pronunciation

felch

/fɛltʃ/