What's on your mug?

1. noun volcanic rock: small volcanic fragments which have compacted together to form rock -tuffaceous, adjective 2. adjective a slang term for "good"

1. Tuff is composed mostly of pumice. 2. This song is tuff.

By Rachel

Awesome, new version of on fleek. Or like, when u get a 99.9% on a test, so close to a hundred, like people call dat tuff.

Guy 1: My Girl just dumped me Guy friend: Aw dats tuff

By Queenyboo

Cheesy Hair band from The late '80s and early '90s with Stevie Rachelle, who owns Metal Sludge. Had a hit in '91, but then Nirvana came, and they went into obscurity.

Tuff's hit was I Hate Kissing You Goodbye.

By jkgl;kghjkl;g

New Zealand slang for strong/butch. Often opposed with weak.

e.g. Me what?? ME TUFF! You what?? YOU WEAK

By Res373733793

'Tuff' is the level/rating scale of how hot a chick is. It is determined by the number of "f's" you give to her: 2 "F's" is the standard for a hot chick, 1 "F" is for a decent chick 0/No "F's" is for fat, ugly, gangly, or lurpy chicks. ***Occasionally 3 "F's" is thrown out there for an absolute knockout, but should be reserved only for someone you would leave your wife for.***

While walking down the street, you see a hot chick and shout out either to your buddies or yourself: "2 F's" or "Tuff!" or "T-U-Double F"-->Hot chick "1 F" -->Decent chick "No F's" -->Fat chick

By LogicalSarcasm