This term has a double meaning: 1] A rock band or any genrue that signs in a major label and plays music for more fans 2] An Asian guy, especially Filipinos, who lives like a caucasian and listens to rock music.
Chad, the Filipino-American who is a sellout, listens to Blink-182, a sellout pop-punk band.
By some dude in the bay area
a band of any kind, has made more than one music video.
"gosh, darn, jimmy eat world was such a great band until they sold out" If your at show you can yell at the band "SELLOUTS"
By Adrian Prybylski
someone who wouldn't come to maccas on a thursday night art class
person 1 "jason coming to maccas?" person 2 "nah he's a sellout" "SEELLLOOOOOOUUTTTTTT"
By fjc
Someone in the recording/media business who uses their integrity to become more popular. Also see: double-cross
Man! Seth Rollins was such a sellout to all the shield fans!
By GrandSpud
When your friend sells you out
Gigi is a sellout cause of last night and didn’t make it because she’s thinks she’s too cool
By im ur sunshine