From Longman Dictionary of Contemporary Englishgeezergee‧zer /ˈɡiːzə $ -ər/ noun [countable] informal 1 MAN British English a man I know this geezer.2 American English an old man
Examples from the Corpus
geezer• So why not drive the infamous geezer?• That old geezer was so impressed that he offered me a job on the spot.• They made a statement for their generation, swept aside the geezers.• Because we already know your names, and we've met this geezer before.• What does he want, this geezer?Origin geezer (1800-1900) Probably from Scottish English guiser “person dressed in something that hides who they are”, from English guise 