ymbfkm 

You must be fucking kidding me

That loser thinks women should obey men? YMBFKM!

ymbfkm by JoeysNannyNoDramaLlama May 6, 2015

ygbfkm 

acronym, used in written form only.
YGBFKM = You Gotta Be F***in' Kiddin' Me

alice: have you heard? Sodium Benzoate messes with your DNA!
Bob: You mean, the preservative they've used in soft drinks for decades?! YGBFKM!!!

ygbfkm by spankthemachine June 24, 2007

YGBFKM 

You've Gotta Be F*cking Kidding Me

Richard: Dude I just Wrek'd your car
Robert: YGBFKM

YGBFKM by Sh*tsticks June 7, 2018