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1. The person in the audience at a concert, play, movie, etc, who forgot to turn off his/her cell phone and is reminded of that fact by getting a call during the event, much to the irritation of everyone else nearby.

2. Someone who feels the need to yell into his/her cell phone far above and beyond normal conversational volume, much to the irritation of everyone else nearby.
Distant reverberating phone ring: beep boop boop beepity beep boop boop!
Other people in audience: What a celltard!

Other people: Shh!
by creaternity April 28, 2006
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A person so insecure that the cannot function in life without having a cell phone attached to their ear. Typically, a younger person.
Look at that group of cell-tards walking down the street!
by RW321 July 21, 2008
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