IPA: /ˈɡæɡ.mən/
KK: /ˈgæɡmən/
A person, usually a man, who creates jokes or funny routines, often for comedians or entertainment shows.
The gagman wrote several hilarious jokes for the comedy show last night.
Gagman → The word is formed from "gag" (from Old English *gægan*, meaning to choke or strangle) and "man" (meaning a person). A gagman is a person who uses gags, often in a comedic context, to entertain or provoke laughter.
Think of someone who 'chokes' or 'strangles' a joke ('gag') to make it funny — that's why a gagman is a person who uses gags for humor.