The progress of American Letters marches on...

defunct (di-fngkt') adj., having ceased to exist or live. L. defunctus, p. p. of defungi to acquit one's self of, to perform, finish, depart, die; de + fungi to perform, discharge: cf. F. d['e]funt.
Example: "The boar, defunct, lay tripped up, near." --Byron.

defunk (di-fungk') v., to remove the funk from. Neologism, Hastings, 2004 (last Monday, to be exact).
Example: That shirt smells - we should defunk it." --Furious