The act of putting your mouth on someones stomach and blowing, making a fart-like air noise.
"I was sleeping, and all of a sudden I was awakened by some homeless man giving me a zerber."
by theonetheycallthevisionthatbaresthegift August 09, 2005
To blow into the rectum of ones partner, generally done for pleasure.
She moaned in ecstacy when I bent her over and gave her a zerber.
by Cliff Burton December 08, 2006