idfwu 

I don't fuck with you. If you want nothing to do with someone, this is the phrase you're looking for.

Guy: Hey, I saw you from across the room and just had to ask. What's your number?

Girl: I have a boyfriend. IDFWU.

idfwu by Horselphant May 4, 2016

idfwu 

I DONT FUCK WITH YOUUU

CONNOR: hey cutie can I have your number
GEMMA: nah idfwu

idfwu by AVERGAEASIANGIRL November 3, 2014

idfwu 

abbreviation for I don't fuck with you ; not wanting to be bothered by an individual

bitch idfwu, you stupid girl

idfwu by bianca shills February 3, 2015

idfwu 

Choosing not to accept unacceptable behavior from a certain person.

Wow ... your behavior really fucks with my emotions, this is why IDFWU !
Usually follows with Bye Felicia

idfwu by Crystal the Pistol January 9, 2016

IDFWU 

wanting nothing to do with someone or something.

Chaz: "hey Ashley, wanna get back together?"
Ashley: "no thanks Chaz. IDFWU!"

IDFWU by tecia January 11, 2015

IDFWU 

Acronym for I Dont Fuck With U.

You a lame that's the main reason IDFWU

IDFWU by Miq_3000LWA April 27, 2015

Idfwu 

Idfwu-i don't f**k with you. Get it? k

Mike: wanna go bowling?
Ralph: IDFWU

Idfwu by RoboRik123 January 21, 2017