Top Definition
A pipette job is given by a rare and gifted individual in the laboratory setting. The three stages of a good pipette job include 1. wetting the rim, 2. insertion of the pipette tip and beginning graceful movements up and down, and 3. pipette ejaculation, occuring at the same time as the final thrust of the hand giving the PJ.
"Jessica gives the best PJ's in lab, although Anthony comes in at a close second when giving a pipette job to male cells"

or

"Tris, you PJ'd the fuck out of those cells and made them break up."
by Mark Engleberry July 15, 2009

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