Slap yourself 

A term used to respond to people who say something stupid or idiotic

" Is the Earth round?"
" We live on the moon"

"Slap yourself"

-I couldn't come up with a good example....

Slap yourself by LifeOnPoint March 29, 2015

Slap yourself 

Term used after you do or say something that even you have to admit was stupid.

Oh woooowww! I can't believe I just paid for all this shit when I could've got it for free....slap yourself!

Slap yourself by NEz11 December 16, 2007

slap yourself to sleep 

You masturbate yourself to sleep

Go slap yourself to sleep(;

slap yourself to sleep by Basketball.2019 July 17, 2014