duck soup[noun]Synonyms: snap, breeze, child's play, cinch, kid stuff, picnic, pie, pipe, pushover, setup
[TahlilGaran] English Synonym Dictionary ▲
duck soup n.,
slang 1. A task easily accomplished or one that does not require much effort.
That history test was duck soup. 2. A person who offers no resistance; a pushover.
How's the new history teacher?
■ He's duck soup. [TahlilGaran] English Idioms Dictionary ▲