The act of tagging people you know in a particular Facebook picture or post within their interest.
Derived from "Trigger Happy".
In a Facebook group consisting of college students of some university...
*Somebody posts a picture of Megan Fox*
I tagged my three basketball teammates.
*Somebody posts a picture of Alodia Gosiengfiao*
I tagged my three fellow Alodia fans.
*Somebody posts a status message that she lost her wallet*
I tag my friend, whom I know has the wallet.
My friends all commented: "LOL tagger happy"
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