London steamer
Farting in an elevator while masturbating.
On my way back from the bar i gave my self a london steamer, sharted, and left my underwear in the hotel elevator.
London Steamer
When one defecates in the middle of an open space for all to see as a surprise form of comedy, revenge or retribution.
"My mom grounded me this weekend, so I left her a big old London Steamer as a Mother's Day gift."