pea-jacketed adjective2 •Wearing a pea jacket.The huge, burly, pea-jacketed medical student—for such I saw at once he was—laid hold of me on the right tenderly enough, and walked me off between him and the policeman. — 1850 •Having a pea jacket.A breakaway to what is in, what is now and a must for the girl in the fashion know is the smart practicality of the pea-jacketed suit. — 1966