A hand gesture made when only your pinky and ring finger are put down. It resembles the gun you made when pretending to be a cop as a child. Usually put up in order to be the first chosen to answer a question, even though a person who uses glingers shout out anyways. Someone who uses glingers is usually an annoyance to the teacher and the class.
George: Fancy coming for a drink tonight Lyn?
Lyn: Can't I'm afraid, I'm busy glingering.
George: Fair enough. It's nice to see you making an occasion of an evening on your own.
Lyn: I know. Although I'm wearing out my favourite velvet gloves