MrMouse 

The act of bigging oneself up unnecessarily through a gaming headset and not being unwilling to do so in person. Squeaking loudly through said device.

I was on the PS3 last night and everyone was giving it MrMouse at me.

MrMouse by Cybermanc9 October 17, 2010

MrMouse 

A loud mouth, obnoxious, irritating southerner who talks crap and just can't help themselves.

Did you here MrMouse talking crap, what a dick!

MrMouse by Ps3 gamer January 13, 2011

Mr Mouse 777 

Mr mouse 777 or s a popular youtube creator. His most popular creations are ; how to be swag, top five people of all time and how to steal food from your local taco bell. You must get him 1000 subs and 4000 hours of watch time so that he can afford cool super fly adidas and his own merchandise. His real name is sacred and too holy but you must always worship him as Mr mouse 777. Get him 1000 subs and 4000 hours of watch time and you’ll get 10000 of what ever in game currency you need to most. Plus you’ll receive 1,000,000 street credits

Mr mouse 777 is my dad

Mr Mouse 777 by Mr mouse 777 biggest fan December 4, 2019