In the U.S.: An old man, particularly one who is either cranky or eccentric. Rather derogatory term.
(US) "Old man Anderson keeps yelling at the kids playing outside. That geezer!"
2. USA definition: Old bastard. Elderly, cranky old son of a motherfucker who drives too damn slow and complains about how things were in his day
3. Heavy Metal definition: Black Sabbath's bass player, Geezer Butler.
2. "Move your car out of the road, you old geezer or I'll break your hip!"
3. "Geezer Butler is a cool bass player!"
Geezer 2: no mate gonna go down the chippy first.
Geezer 1: fuckin sorted mate.