look up any word, like b4nny:
 
1.
congratulations, just shortened
gratz bud (congratulations my friend)
by VASHTHESTAMPEDE March 27, 2003
 
2.
a shorthand version of Contgratulations, often shortened to grtz, gtz, or even gz
Guy 1 "I am pregnant"
Guy 2 "gratz, but arn't you a dude?"
by christopher malowany October 22, 2007
 
3.
Short for "congratulations". In World of Warcraft, it is usually said when dinging.
iPWNedyourm0m: ding!
saraxx: gratz!
by Saraxx July 11, 2008
 
4.
A stupid way of saying "congratulation". Made up by morons.
"Gratz PMR FINISH liao to shi han"
by One who hates the word gratz October 11, 2011
 
5.
Pronounced, "grAHts". Rhymes with, "rots". Slang for any noun whose proper name cannot be recalled immediately. Can also be spelled, "graz".
1. "Hey, man, why don't you run into the kitchen and get me some of that gratz meat we were eating earlier, huh?"

2. Yo, who was that graz-head we was hangin' wit' earlier on the set, homie?
by Max Richter July 21, 2007
 
6.
gratz: slang for spanish (gracias) or itallian (gratzi).. meaning thank you!

when your lazy to say thank you

just say Gratz..
hey good job on that speech last night. you reply, "Gratz"

your a nice guy! oh yeah, "Gratz"
by (Anwar ) Plan-A-Emcee May 18, 2005