Definition of "wif"

That's what I mo' wear wif my shoes.

1998, Ted Shine, Contributions, page 31

I been at the gym gettin' down wif my peeps.

2000, Jan King, It'a A Girl Thing: The Hilarious Truth About Women, page 161

If I don' have no problem wif my high school test?

2002, Stan Hayes, The Rough English Equivalent, page 324