D4F 

Deperate for friends

When someone will do anything for anyone because he/she needs friends

When someone does something drastic/stupid to gain friends

Sam is so D4F, he'll add anyone on facebook.

He's doing her homework because he's D4F.

Sarah's only nice to him because he's having a party. She's so D4F.

D4F by amrajt January 5, 2011

D4F7 

Alternate spelling for the word daft, commonly used when describing something awesome or insane. Made popular in a Pennsylvania high school.

"Dude, did you see the concert last night? It was so d4f7."

D4F7 by Skippy Skipperson January 12, 2010

d4fi 

When it's your last in a run, it's all fair game, no fucks given, anything can happen!! Let's see what hell we can bring upon the masses then quietly sneak out.

For Fucks Sake Rooster, d4fi !!

d4fi by Medicide June 3, 2018