Acrimonious

Hey hey, found another funny word on  Friends. :-]

acrimonious (akre'moneus)

adjective

(typically of a speech or debate) angry and bitter

ORIGIN early 17th cent. (in the sense  [bitter, pungent] ): from acrimony + -ous

Used in a sentence: Joey was having so much trouble trying to figure out how to use "acrimonious" in a sentence that he, himself, started to become acrimonious. 

-smellycat33