sell out

verb sells out · selling out · sold out

1. To sell all of a supply or stock of something. They sold out of concert posters yesterday and won't get another shipment until next week.

   Similar: run out, stock out

2. intransitive To abandon or betray one's principles to seek profit or other personal advantage; to abandon or betray one's supporters through this change. It used to be a pleasant little community, until the leaders sold out to the developers.
3. transitive To betray (a person), usually a close friend or family member, for personal gain. I'll kill him if I see him again; he sold me out.

   Similar: sell, sell the pass, sell down the river, assfuck, betray, burn, cop out, cross out, cross up, double-cross, do someone dirty, do the dirty on

4. To sell one's business (with a connotative emphasis on entirety and finality). The owners long resisted buyout offers, but when they were ready to retire, they finally sold out to a competitor.
5. figuratively To commit or abandon oneself entirely (to a cause, a team, etc.).
6. historical To sell one's commission. After the peace of Versailles he resided in England; but, about three years before the breaking out of the Revolution, he sold out his commission in the army and emigrated to New York.
7. ambitransitive, dated To liquidate, sell off, or divest oneself of financial investments, stocks, or government funds. '[…] I might have been very unfortunate indeed; for the stocks were at that time so low, that if I had not happened to have the necessary sum in my banker's hands, I must have sold out to very great loss. […]'
8. archaic, intransitive To hurry out.