To focus one's attention on a particular woman as opposed to being with male friends.
If one is found wifin' in a club, there is usually a twenty dollar fee.
Gerald: Hey man, stop wifin' with Meg and hang out with your mates!
Jeff: No way, man! I've been wifin' all day!
Meg: Jeff - who's that tall guy coming over here?
Slenderman: No wifin' in da club. Gimme $20.