To belittle oneself in judgment; to underestimate oneself and one's abilities (and thus avoid being acknowledged to the deserved extent).

(idiomatic) To abandon one's spiritual values or moral principles for wealth or other benefits.

Alternative form of sell wolf tickets

To work as a prostitute.

Third-person singular simple present indicative form of sell down the river

present participle of sell down the river

(UK) To sell something of little worth, pretending that it is something else of greater value.

(transitive, idiomatic) To betray, especially in a manner which causes serious difficulty for the one betrayed.

To continue trying to convince a customer of the benefits of making a purchase after the customer has already decided to make that purchase; to oversell.

Third-person singular simple present indicative form of sell past the close