Sounds like an old lady.
Yaya: grandma how is u
Grandma: WATTT U SAY SONNY???
Grandma: WATTTT SPEAK UP
Wat is short for "What" but is only spelt "Wat" by total inbred morons who have no idea how to actually write a proper message, which can be understood.
Words which also fall into this are:
Wat u doin, lolz, ow woz last nite, i heard der woz a fite, i fink it woz wiv dat boy frm across da road hehe tb xxx
An exceptionally rude IM message. Made after one individual messages an other to say hi to stand in place of the question "why are you talking to me?"
Moronic abbreviation for "what." Should be pronounced not as waht, but as wat (rhyming with bat, cat, etc.)
eMiNeM kidd 120 (8:48:48 PM): wats morins
Translation: "What are morons?"
Moronic spelling of what for the thinking impared. (rhymes with cat bet pat ect.)
Wat's going on???
Wat(v): Being cute, slutty as fuck
Manly Black Cock: Stop being cute bitch ass nig
Girl: OMG FUCK YOU 4D5E6F