phone fag Share definition Flag One who is constantly and unnecessarily using their cell phone for calls, texting, games, checking email or downloading ringtones. Deuce is such a phone fag, every time I see him he is playing with his damn cell phone. phone fag by mza929 December 8, 2007 0 0 Get merch Get the phone fag mug. Buy Now — $32.95 See more merch