Inflected forms: foist·ed, foist·ing, foists 1. To pass off as genuine, valuable, or worthy: I can usually tell whether a poet . . . is foisting off on us what he'd like to think is pure invention (J.D. Salinger). 2. To impose (something or someone unwanted) upon another by coercion or trickery: They had extra work foisted on them because they couldn't say no to the boss.3. To insert fraudulently or deceitfully: foisted unfair provisions into the contract.
ETYMOLOGY:
Probably Dutch dialectal vuisten, to take in hand, from Middle Dutch, from vuist, fist. See penkwe in Appendix I.