Green’s Dictionary of Slang

sporran n.

[Gael. sporan, a purse, worn in front of the kilt by Scottish Highlanders]

the pubic hair.

[UK]Farmer & Henley Sl. and Its Analogues VI 321/1: spooran [sic] subs. (venery). — The pubic hair.
[US]H. Miller Sexus (1969) 220: My hand resting warmly on the edge of her thick sporran.