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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.
tuff by Rachel April 30, 2006
Related Words
tuff tuffy tuffet Tuffin TuFFle tuff muff tuffenuff Tuffmancing Tuffo Tuff Guy
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
tuff by Queenyboo October 9, 2018
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.
Tuff by jkgl;kghjkl;g September 13, 2005
New Zealand slang for strong/butch. Often opposed with weak.
e.g. Me what??
ME TUFF!

You what??
YOU WEAK
tuff by Res373733793 July 31, 2007
'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
Tuff by LogicalSarcasm July 20, 2010
Someone who can survive even through pain and loss of limbs, even if they seem autistic
Person 1- bro how does he not yell? I just cut off his legs and he only said gotcha!?

Person 2- he’s so tuff