A biscuit or cookie is another name for a female's vagina, it is used because the vagina has two lips which can be the biscuit and whatever you put in between (chocolate, cream or any type of flavored edible you can put in/on a biscuit) the biscuit
by WTF Italian Stallion June 22, 2021
Get the Biscuitmug. 
by Stephzsz January 14, 2018
Get the take a biscuitmug. 
A game played by teenage schoolboys in Britain wherein everyone violently jerks off onto a single digestive biscuit at the same time, and the last person to bust has to eat the biscuit. Most commonly played at sleepovers or school trips.
Lads, want to play soggy biscuit?
Soggy biscuit is actually grim
Wheyy, you have to eat the soggy biscuit
Soggy biscuit is actually grim
Wheyy, you have to eat the soggy biscuit
by Britishslang February 6, 2025
Get the Soggy Biscuitmug. by Nanniesfc July 24, 2021
Get the Soggy Biscuit fcmug. by Xhaka July 20, 2022
Get the Biscuitmug.