(transitive) To fraudulently or disingenuously pass (goods, or ideas) on to. / To get rid off (something unwanted) by giving it to someone else.

One who foists; a falsifier.

plural of foister

(computing, derogatory) Software that is installed without the user's knowledge or consent, often bundled with another product.

mouldy, musty, fusty

(obsolete) fustiness; mustiness

(archaic) Third-person singular simple present indicative form of foist