fart contamination

When a fart stains the couch, or underwear, or fabric, etc. Car seats.

I hope this couch we got on craigslist doesn't have any fart contamination on it.

by wassupweasel May 16, 2016

Cross-contaminating

Alternating back and forth between vaginal and anal sex, thus cross-contaminating both.

"I was cross-contaminating her for over an hour."

by World-Wide-Walt March 13, 2021