sell out (something)
— phrasal verb with sell us/sel/verb [ I/T ] past tense and past participle sold /soʊld/
(EXCHANGE ALL)
to get rid of all of an item in exchange for money:
We sold out (of) the T-shirts in the first couple of hours.
Ten of the Huskies' 15 home games are already sold out (= all the tickets have been bought).
If a business sells out, it receives money in exchange for control of it:
The owners of the Meadowlark Inn said they would be willing to sell out at a fair price.