charger fag, is a person who uses their device on a charger all the time, because their battery is horribly fucked up, or they just wanna be a idiot and keep it on charge all day,
person 1 : hey, look at that fat fuck always playing his phone on a charger
person 2: he's a charger fag!
a person who always uses their phone iPad Nintendo switch PSP on charge, and never unplugs it
Girl 1 : hey you see that fuck head over there always in the corner on his phone
girl 2 yes he's a charger fag he never unplugs his phone