tru dat 

1. A gay, effed up way to say thats true.
Notice how about 70% of people who say "tru dat" are white people trying to act black. About 15% are saying it because they hear others say it. And 10% say "tru dat" because they are black and cannot comprehend "big words" in sequence like "thats true", so they must shorten it to a level where even the common house fly will understand it.

(wigger 1) "Wow. I'm one gay ass mother, because I try and act black!"

(wigger 2) "Tru dat!"

tru dat by Ugoff August 8, 2004

tru dat 

being tru to a gangsta

Hey man my ass is chaffing.
tru dat

tru dat by J-(cash)money April 25, 2006

tru.dat 

Another way of saying "True that!"
Also, this file has found its way into many viruses as a humorous title of a .dat file. Chances are, if you have this file on your desktop or root windows folder, you have been hacked.

C:/windows/tru.dat

Clanmate1: I totally pwn3d that guy!
Clanmate2: tru.dat!

tru.dat by h4x0r_w00t! November 26, 2004

Tru-Dat 

That's true.

X-Fest was 'da bomb this year! Tru-Dat, Tru-Dat

Tru-Dat by The Anrkissed January 13, 2014

[tru dat] 

the same as saying "thats true" or "correct" or "i agree"

"You are good at basketball"

"tru dat"

[tru dat] by ethan[ j.k. LIVIN ] January 7, 2009

tru dat sista yo 

ghetto for true that sister , used by black girls

Chick A - " Then shoes are rockin"
CHick B- " Tru dat sista yo"

tru dat sista yo by Miamixox January 14, 2008

tru dat sista yo 

gansta way of saying thats true, or true that sister

Girl 1 - that blonde football player has a nice butt
Girl 2 - tru dat sista yo!

tru dat sista yo by HoochieMamma69 January 13, 2008