Someone whom advertises anything that isn't their own product.
Do you ever hear about YouTube?

Yeah isn't that the website for sell-outs?

Yep, that's the one.
by stufag April 17, 2019
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When a band or solo artist becomes extremely popular and changes the style and sound of their music make more money, and to earn a spot on the "Top 40" music charts.
Perfect examples of sell out artists:

Coldplay

Elton John

Cher
by EJ5 September 03, 2015
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Two friends who sell out a good person for sluts who hate them ... weak individuals with no fucking back bones ... that use people then get owned by whores
Al and James are so weak , they fuck with bitches who treat them like the losers they are, they’re both sell out dicks ...
by Rick the tiger July 28, 2019
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