1 definition by NiftyPrimeTime

An abbreviation for the term bonerjam, most commonly used to describe the jam-like substance that protrudes from a boner. Also used as a nickname for girls who enjoy bonerjams.

Abbreviation - J Bam
The cute girl in class enjoys bonerjamming so much, we refer to her as Jonerbams.
by NiftyPrimeTime February 17, 2012
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