1) the face made when wtfery is spoken
2) a blown face
often following the words or with the words what the fuck or what the hell
Guy 1: dude i spent the night with a girl
Guy 2: u swack the joint
Guy 1: nah we just talked
Guy 2: wtf *wtf face*
Describes a person with a face that looks like they have been inbred, and/or are just straight up ugly enough to cause you to take many double takes and/or talk shit about how disgustingly hideous they are.
-"Holy shit, that chick is ugly."
-"Damn, she got a WTF face."