PC.net

Like

(Y)	Copy
	Popularity	★ ★ ★ ★ ☆  Common
	Direction	Text (used as a shortcut)
	Added	June 21, 2012
Description: The thumbs up graphic that can be inserted into Facebook online chatting sessions by typing "(Y);" sometimes referred to as the "Like-moticon."
Smiley Shortcut in: Facebook

Emoticon Information from PC.net
https://pc.net/emoticons/like