It is a challenge during Horse. It is a variation on the basketball game Horse. When a player misses a shot and receives the final letter E, they can say prove it and the other player has to remake the shot. If they do game is over otherwise the letter E is not earned and play continues.
Example of Prove it Dammit bro you can’t make that crazy shot again prove it!”
by Got wood August 16, 2019
Get the Prove it mug.
Her: “I have 3 nipples
You: “Both of you prove it
Her friend: “But I don’t have 3 nipples.”
You: “Prove it.”
by TerribleAsian December 3, 2018
Get the Prove It mug.
When you are talking to somone and they state the obvious tell them to prove it. I will confuse them therfore leading them to ask questions.

Prove it can be used to confuse, irriatate, or just for fun when board.
(got this from my brother)
scottpenn13: prove it
L o o pdloop00: prove what!?!?
scottpenn13: "it"
L o o pdloop00: you cant prove IT
scottpenn13: do you know what you are trying to pove?
L o o pdloop00: no
scottpenn13: then how do you know you cant prove it
L o o pdloop00: it is a pronoun as in nonexistant unless it is put into actual being, therefore, IT cannot be proved unless the term IT is proved itself.
L o o pdloop00: HA
L o o pdloop00: BEAT THAT
scottpenn13: you suck
by Chris West September 2, 2004
Get the Prove it mug.
-A term used to annoy or confuse someone for shits and giggles.
-A way to end a conversation that you don't want to continue; used to stop a conversation from starting.
--Can be used to tease someone for stating the obvious.
-Stating that you are choosing to ignore someone.
-Can be used after someone else says anything; does not have to make any sense.
Example 1:
Dave: Hey Jon, do you know where my toothpaste is?
Jon: Prove it.
Dave: ....What?

Example 2:
Jon: Hello dave, whats up?
Dave: Hey Jon, not much, how are ya?
Jon: Alright.
Dave: Yea? Well I was just about to go to the store to pick up some food for my cat mittens and...
Jon: Prove it.
Dave: .....

Example 3:
Dave: Hey Jon, I'm going on a walk.
Jon: Prove it.
Dave: ...Damnit!
by goatstradamus June 17, 2006
Get the prove it mug.
When you've run out of reasons or explanations to your actions, you simply state, "Prove it!." It proves to be the "end all, be all" stumpers to all those not so complex arguements.

**Your finishing move to this phrase is immediately walking away after stating, "Prove it!"**
Dude, you drank the last cold beer. Prove it!
Why are you such an ass all the time? Prove it!
That's not cool making money off your own friends.Prove it!
by Kevin Kempf July 27, 2006
Get the Prove it mug.
to sleep with a hot girl you have found on facebook.
Lloyd: "Hey Pedro can you help me prove this formula"
*Pedro walks over, sees some hot chick on my computer screen, points at her and says: "nah maang, but I wanna pruuve daat"
by Verachmelaad July 17, 2009
Get the Prove mug.
Guy 1: you heard this fan theory?
Guy 2: it’s not a fan theory it was proved
by iTz_Miners August 4, 2018
Get the Proved mug.