The act of where you are on one side of a person and you tap their opposite shoulder, causing them to foolishly look the wrong way. Frowned upon greatly.
Chris: *on left side* *taps Andrew's right shoulder*
Andrew: *looks right* Goddammit, Chris.
Chris: You just got fenton'd.
Andrew: *looks right* Goddammit, Chris.
Chris: You just got fenton'd.
by RushShirtKid January 26, 2012
by OLD M June 22, 2005