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 April 17, 2006
Get the tuff mug.
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 October 10, 2018
Get the tuff mug.
A statement often used after hearing something really good/ really bad or used after saying something really good or really bad, popularized by J.D.R. in 2017
She said she want me? That’s tuff !
ITSMERICHB has almost a million snapchat story views, That’s Tuff!
by ITSMERICHB February 21, 2018
Get the That’s Tuff mug.
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 August 15, 2005
Get the Tuff mug.
New Zealand slang for strong/butch. Often opposed with weak.
e.g. Me what??
ME TUFF!

You what??
YOU WEAK
by Res373733793 June 29, 2007
Get the tuff mug.
What all of your Discord friends tell you when you say you got rejected. It’s alright, I’ll keep it a secret. shit, they know.
1:Jennifer left me..
2: Damn bro, that’s tuff.
by QuiteSeriousDefinitions September 5, 2021
Get the that’s tuff mug.
'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 July 20, 2010
Get the Tuff mug.