Short for: First Time I Saw It
Friend 1: "Hey man, did you see that movie?"
Friend 2: "Yeah dude, it was awesome!"
Friend 1: "I know man, ftisi I was like 'WAAAAAT?'"
(verb)
To make something look like
Thanos by painting it purple and sometimes giving it a big chin
Customer: "Excuse me, where can I find thanosized shirts?"
Employee: "We have purple shirts over there" *points somewhere*
Customer: "Thank you, that does put a smile on my face"