Green’s Dictionary of Slang

1. the pubic hair.

1786

Burns Jolly Beggars n.p.: They scarcely left to coer their fuds.

2. the vagina.

2012		(con. 1980s) I. Welsh Skagboys 27: Fuck your family, ya fud-faced bag ay Barry White.
2019		Guardian 16 Jan. 🌐 As sympathetic as I am to your point, there’s a bit of a line to be drawn between mindfullness blah, and candles that smell of someones fud.

3. used as a term of abuse, i.e. cunt n. (4)

2012		I. Rankin Standing in Another Man’s Grave 197: Mind if I steal that for my book? [...] I’m calling it “Fuds Say the Funniest Things”.’ [...] ‘Fud, am I? Maybe we should go round the back...’.
2016		Twitter 27 June 🌐 @johnmcternan stay there ya nasty wee fud.