A noise, originally muttered by Curly in the three stooges and later picked up by zoidburg and Homer Simpson, is muttered in an excited and anxious manner
Moe: Hey, you!
Curley: who me?
Moe: Yeh you
Moe: Why youuu (knocks curley on head)
Curley: wob wob wob wob!
Other examples are
Zoidburg ripping off fry. Fry couldnt buy something and Zoidburg got caught out