Green’s Dictionary of Slang

1. a coat.

1982		J. Sullivan ‘Diamonds are for Heather’ Only Fools and Horses [TV script] Well where’s me billy-goat?
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 18/1: billy goat n. a coat.
2002		K. Lucas ‘All my life I’ve wanted to be a Barrow Boy’ in Obfuscation News Apr. Issue 20 🌐 ‘What I want made’, he told Tom, ‘is a true Costermongers Flute, similar to that worn by Dick Van Dyke in Mary Poppins. Corduroy Round the Houses, a Velvet Billy Goat, a scarf choker and the crowning glory, a flat cap.’.

2. the throat.

2002

D. Shaw ‘Dead Beard’ at www.asstr.org 🌐 The problem is that I feel too good, and if the pace doesn’t slow down soon Dionne is going to get a high speed injection of harry monk straight down her billy goat.