1) Used to let someone know that they are unwanted or need to leave the current situation
2) Used to deflate the conceitedness of an individual who might be feeling themselves
3) Used when someone, a friend or otherwise, does something that is just unacceptable
Guy 1: Hey bro you know the only thing that matters in life is eating ass

Guy 2: Cancel that, and dismiss yourself

Girl: Pssh, I'm too fine for all of you!
Guy: If you don't getcho ass on! Please dismiss yourself.

Guy 1: Is it bad that I like to play with myself in public
Guy 2: *Russell Westbrook face* bro wtf! Dismiss yourself
by Urban Pathfinder October 27, 2015
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