2 definitions by lebrewski

A small length of bubble wrap rolled into a log, taped, and used for male masturbation.
"My mom was cleaning out my room while I was at camp and found my jack log in the closet. Now she'll hide the bubble wrap from me."
by lebrewski September 18, 2013
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Created when a woman is on her knees and forearms sticking her ass in the air thus making a 'stump' ready for pumping by her male partner.
"Dude, last night was awesome. We went back to her place and the next thing I know, she takes off her clothes and makes a pump stump right in the middle of the living room floor. Rug burns on my knees are killing me."
by lebrewski June 12, 2014
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