Top Definition
An abbreviation of "Why, though?" mainly used as a joke or pointless comment in online discussions.

The phrase picked up a large following in popular random-topic communities on
user1: "Help me choose my MySpace default!"
user2: "y tho"
user1: "omg guys my fob shirt came today"
user2: "y tho"
by licia February 19, 2007
Used to express hopeless frustration when something goes wrong. Used mainly by people originating from Tumblr.
Random Kid: *Shows tumblr user a stupid meme*
Tumblr user: "Y tho?"
Random Kid: *Puts phone in pocket and walks away*
by cho-pon July 25, 2016
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