jokester UK /ˈd͡ʒəʊkstə/US /ˈd͡ʒoʊkstɚ/ noun3 •A person who tells jokes; a joker.Our uncle is always being a jokester and cracking jokes about how much he eats and makes messes. •A person who plays practical jokes; a prankster. •Jester, court jester. formsjokesters