The term "zerbet" was used by Bill Cosby in his role as Dr Heathcliff Huxtable in The Cosby Show i the 1980s to describe a "raspberry", his stage daugther Rudi had given him. A "raspberry" or "zerbet" is the act of putting one's lips against a body part, principally the belly, and blowing air. A tickling senstion ensues.
Rudi just gave me a Zerbet
by Leon Engelbrecht January 28, 2008
When you blow on someones stomach eliciting a loud farting sound.
Justin Timberlake, "I gave Timbaland the biggest zerbet last night. He seemed to really enjoy it."
by dickwadloser April 05, 2009