This phrase is synonymous with "chill with" or "hang with" sometimes even just to labelpeople you are cool with. It is often times used by rapper "Plies". it's more of a southern term
Boy: Man you who that be?
Other boy: that's just one of my niggas I fucks with.
Plural to "fuck with you". Used for two or more people really liking another person, agreeing they cool with that person and allowed to be their friend.
A term that refers to someone you have great deal of affection and trust for especially in the south.
Platonic - a guy or girl you roll with that has your back and you have theirs
Non - platonic - your "ride or die ' person who has no equal or soulmate
Cassidy :"hey, lanett. Who is John to you?"
Lanett :"oh John? I fucks with him."
Cassidy :"oh it's like that?"
Lanett :"yeah. I fucks with John. Ride or die."