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English word soggy biscuit comes from English soggy (Soaked with moisture or other liquid.), English biscuit
soggy (English)
Soaked with moisture or other liquid.
biscuit (English)
(UK) A cracker.. (US, slang) A plastic card bearing the codes for authorizing a nuclear attack.. (chiefly, North America) A small, usually soft and flaky bread, generally made with baking soda, which is similar in texture to a scone but which is usually not sweet.. (chiefly, UK, Australia, Ireland, NZ, rare in the US) A small, flat, baked good which is either hard and crisp or else soft but [...]
soggy biscuit (English)
A supposed game where men masturbate each other in a circle, ejaculating onto a biscuit (or cookie or other food), with the last person to ejaculate forced to eat the biscuit; it is associated mainly with all-male hazing in environments like boarding schools and military training.