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1.
The Dota 2 version of the twitch.tv emoticon Kappa, which looks like the Dota 2 hero Meepo. It is a Kappa with Meepo ears and a straw in its mouth. People often misstake it for a cat Kappa or a teemo Kappa, but its not.
N0tail's playing Keepo again
by mrpeeshoga June 02, 2014
 
2.
The cat version of the Kappa emote, which is the exact same meaning, but the user prefers cats over humans.
Are you sure you're not a Kappa, Keepo.
by Stylized December 26, 2013