foist

from The American Heritage® Dictionary of the English Language, 5th Edition.

• transitive verb To pass off as genuine, valuable, or worthy.
• transitive verb To impose (something or someone unwanted) upon another by coercion or trickery.
• transitive verb To insert fraudulently or deceitfully.

from The Century Dictionary.

• Same as foisty.
• noun A breaking wind without noise: same as fist, 1.
• noun A puffball.
• noun A sly trick; a juggle; an imposition.
• noun A cheat; a sharper.
• noun A cutpurse; a pickpocket. Also foister.
• To smell musty: same as fust.
• To work in by a trick; thrust in wrongfully, surreptitiously, or without warrant; insert or obtrude fraudulently or by imposition; pass or palm off as genuine or worthy: followed by in or into before the thing affected, and by upon before the person: as, to foist a spurious document upon one.
• To falsify or make fraudulent by some insertion; cog, as a die.
• noun A light and fast-sailing ship.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete A light and fast-sailing ship.
• noun obsolete A foister; a sharper.
• noun obsolete A trick or fraud; a swindle.
• transitive verb To insert surreptitiously, wrongfully, or without warrant; to interpolate; to pass off (something spurious or counterfeit) as genuine, true, or worthy; -- usually followed by in.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb transitive To introduce or insert surreptitiously or without warrant.
• verb transitive To force another to accept especially by stealth or deceit.
• verb transitive To pass off as genuine or worthy.
• noun A thief or pickpocket.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb insert surreptitiously or without warrant
• verb to force onto another