A "Gerber" is a baby food jar filled with cat urine and allowed to age until semi-solid, and then typically hurled at ones enemies, or enemies of ones friends, or sadly , at
people with whom one wishes to create an antagonistic
relationship.
Cat's do not emit much urine, so to fill a baby food jar with their urine is a clear indicator of the level of ennui of the hurler...
At the
meeting, I knew I was gonna be fired so I reached into my
bag, pulled out a gerber and chucked it as
hard as I could at the back of her head.