High waisted shorts or jeans that jam right up a girl's vagina, ass, or both. Normally because they are too small.
All the girls on the boardwalk are wearing their jammerz.

She's getting fisted by her jammerz.
by Ryan/Laura July 17, 2014
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The opposite to butterz so good looking , gorgeous , beautiful.
Scott says so stephy your so jammerz or you look jammerz today
by Schictt Stefirph May 22, 2011
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