Ch-ch-check out the tweets (below)!
[Image via Jason Merritt/Getty Images.]
Many Trey Songz fans might notice when the singer begins every song with the word.
Others might recognize the word from A&E's Storage Wars as star of the show Dave Hester uttered Yuuup! as well.
The two have been fighting it out to see who has legal copyright over the use of the word.
Songz has sent Hester a cease and desist letter to get the reality tv star to stop saying the word, claiming he's used it since late 2009.
Hester has registered the catchphrase three times since May and he argues that Songz and his version sound completely different.
Songz apparently should've trademarked Yuuup! when he had the chance so he's probably kicking himself right now.
D'OH! (That's trademarked too.)
[Image via WENN.]