geezer
n. C1 Advanced UK //ɡˈiːzɐ// geezer
n. a rude way to talk about an older man. You use this word when you want to be funny or a bit mean to someone who is much older than you.
n. a derogatory or humorous term for an elderly man.
He called the old man a geezer to be funny.
The teenagers were laughing at the old man, calling him a geezer for walking too slowly.
From guiser. Compare also German Low German Kieser (“an obstinate person; brute; savage”).
See geyser.