'pushover' definitions:

Definition of 'pushover'

From: WordNet
noun
Someone who is easily taken advantage of
noun
Any undertaking that is easy to do; "marketing this product will be no picnic" [syn: cinch, breeze, picnic, snap, duck soup, child's play, pushover, walkover, piece of cake]

Synonyms of 'pushover'

From: Moby Thesaurus