on what 

Similar to saying For Real.

1) I about to go.
2) On what! I wanna go.

on what by Beautifull February 5, 2005

on what 

to swear on something that is of importance to you

On what you banged that hot asian girl.

Response:

On my mamma I banged her

on what by T8KEM September 14, 2005

On What 

You can be serious. Put that on something.

On what you disnt tell me you hit before.

On What by White Knights Unite November 18, 2020

on what? 

Used to verify sincerity/truth. shortened version of questioning statements one might place on something dear to them. Like I bet on my mothers grave, I'm telling the truth.

Person #1: "I hit that shit last night!"

Person #2: "For Reals? On what?"

on what? by Malaine September 22, 2005

on what tho 

To agree with someone.

Them: “You’re babymama bald head asf.

You:“On what tho?”

on what tho by Yaherrr October 23, 2020

On what domain?

A retarded way of replying to someone's statement when you having nothing else to say. Only used by calculus kids.

John: " Yesterday i ordered pizza."
Kevin: " On what domain?"
John: " what....?"

Ara: " yesterday i took a shit"
Melia: " On what domain?"
Ara: " ...what ?!?! "

On what domain? by araG November 4, 2009

What on earth 

Same as what the hell but way more polite.

BOOM!

Me: What on earth is that sound?

What on earth by Matthew678 January 9, 2019