A french-sounding phrase for those who don't know if the grammar is "Who's to say" or "Whose to say", and will probably never remember but are tired of being corrected by nerds with nothing better to do.
Becky: "do you think it'll rain tomorrow?"
Albert: "Whosetouche."
Becky: "It's who's to say, actually."
Albert: "We're speaking, how do you know how I spelled it in my head? Also I used the scholar's Whosetouche."
Becky: "Oh my mistake! Touche."
Means anyways, but in a more stylish way. A great Segway from an unwanted and awkward conversation and can be used to start a new flow of conversation.
Bill: *Says something so stupid, You want to slap him*
You: *Resists violence and rolls eyes while saying* "Any Whosey..."
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"