RhymeZone: oversell definitions

Definitions of oversell:

verb: (transitive) To agree to sell more of something than one can supply.
verb: (transitive) To be too eager in attempting to sell something.
verb: (transitive) To praise something to excess.
verb: (transitive, obsolete) To sell for a higher price than; to exceed in sale price.

(Definitions from Wiktionary)