also sellout
( sell-outs)
1.
If a play, sports event, or other entertainment is a sell-out , all the tickets for it are sold.
Their concert there was a sell-out.
N-COUNT : usu sing , oft N n
2.
If you describe someone’s behaviour as a sell-out , you disapprove of the fact that they have done something which used to be against their principles, or given in to an opposing group.
For some, his decision to become a Socialist candidate at Sunday’s election was simply a sell-out.
N-COUNT : usu sing , oft N to n [ disapproval ]