Top definition
Masturbating to ejaculation, supposedly for the purpose of disposing of old sperm so that fresh, new sperm can take its place.
John didn't have a date on Saturday night, so he just went home to rotate his stock.
by jdmat December 12, 2007
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug