biffy

[bif-ee] /ˈbɪf i/
noun, plural biffies. Chiefly Upper Midwest and Canadian Slang.
1.
a toilet or privy.
Also, biff.
Origin
origin obscure
Slang definitions & phrases for biffy

biffy

noun

A toilet; bathroom: the new biffies being installed at a dormitory (1940s+ chiefly Canadian)