A facial expression that expresses confusion, disbelief, digust, or exasperation
When I showed Grandma my new tattoo, she gave me the "what the fuck face (WTFF)"
used either when someone so stupid you want them to repeat themselves, or you don't know what they're saying
Guy1: Man I have a waifu she so haawwawwwwt
guy2: what's your face spittin? I don't speak stupidity