bumfreezer

/ ˈbʌmˌfriːzə /

noun

1. a slang name for an Eton jacket
2. slang.
   any of various similar styles of short jacket worn by men

Example Sentences

The clothes seldom vary much — jeans, jeans jackets, khakis, bumfreezer blazers — and, according to the mood of the twin designers Dean and Dan Caten, are either laboriously distressed or ostentatiously schoolboy proper.

From New York Times

They did well from the start, but with a lot of pace changing razzle-dazzle like the Russians, while their costumes were still in the fine old British tradition of crotch-catcher: cat-suit for him and bumfreezer frilled frock for her.

From The Guardian