Top Definition
Thunder up is the term used when the Oklahoma city thunder basketball team gives an ass whooping to other teams.
Thunder up on the Los Angeles Lakers tonight!
by Thunderjunkey22 April 27, 2010
The act of OKC Thunder b-ball raising to the call and beating a better team.
OKC is going to Thunder up on Dallas in the last game on home court.
by TheZoso May 21, 2011
(V): The act of adding decorations specific to the Oklahoma City Thunder NBA team to anything and everything as a way to show how pumped up you are for the team. Basically making anything Thunder-ized.
James: Did you see that building with a beard?
Kevin: Yeah, they Thundered Up that building.

Serge: The whole state of Oklahoma is Thundering Up!
Thabo: I know, I can't go anywhere without seeing people dressed in orange and blue, street art, flags and banners.

Russell: We need to Thunder Up for the big game.
Kendrick: Yeah, we should buy lots of Thunder stuff and wear it and put it everywhere.
by OKCThunderLover June 14, 2012
To be ready to fight; To be prepared for an ass-whooping
Tom: I'm gonna knock you the fuck out, punk
Dick: Thunder up, bitch
by A. Kylar July 04, 2016
Slang for "furious masturbation."
I've got my tissues, a brand new bottle of Jergens, reruns of "Charles in Charge" on it's time to THUNDER UP!
by thunderupper June 12, 2012
To furiously masturbate.
Tom: I love to masturbate.

Bill: Me too!! I ThunderUp every day!
by JDoggg June 12, 2012
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