People who bring down a party by whining, being selfish, and being stupid worthless people when others wanna get down.
"I can't believe she started to cry in the middle of Justin's party."
~ "I know, she's always a celebrat at parties."
by GurlPlease1521 January 9, 2011
(v.) ce-luh-brat-ting
When you accomplish something and reserve the right to be a brat.
Syn. Feeling oneself;
Grandstanding supreme
“My boyfriend won a grammar argument and now he won’t stop celebratting.”

-“Why is Amber drinking on the street and yelling at cop? It’s 11AM!”
-“She hooked up with a hot guy last night and now she’s celebratting.”
by Robine July 9, 2018