intj. (old cant).A retort forcible. STOW IT! (q.v.). [From GERRY = excrement + GAN = mouth, i.e., literally, Shit in your mouth.] The common form is: Shit (or a turd) in your teeth; as in BEN JONSON, Bartholomew Fair, 1614. Fr., Tais ta gueule ou jte chie dedans.
1567. HARMAN, A Caveat or Warening for Common Cursetors. GERRY GAN, the ruffian cly thee.