When a man or woman has explosive diarrhea in a bathtub, causing a layer of "oil" to rise to the top, in which the couple engages in sexual intercourse in such bathtub.
A - "So i did some kinky stuff with Cindy last night."
B - "Oh really? What kind of stuff?"
A - "We did the BP Oil Spill. Best sex of my life!"
B - "You're fucked up dude, I'm going home."
B - "Oh really? What kind of stuff?"
A - "We did the BP Oil Spill. Best sex of my life!"
B - "You're fucked up dude, I'm going home."
by Toby The Cat September 16, 2010
Get the BP Oil Spillmug. 
To pull out when having anal sex in a pool or hot tub with someone who has to take a shit. The resulting diarrhea will leak out into the water when you pull out, emulating the BP Oil Spill.
by Bucky Cap July 9, 2010
Get the BP Oil Spillmug. When 75% of something mysteriously disappears.
Jill's lemonade is playing BP hide-n-seek! My guess is that roughly 25% has absorbed into the cup, 10% has killed the surrounding wild life, and the remaining 40% has ruined the tourism economy.
by D-Feld August 6, 2010
Get the BP hide-n-seekmug. When a male has an unusually large penis
I have Big Penis Syndrome (BPS)...
by Big Penis Syndrome October 23, 2017
Get the Big Penis Syndrome (BPS)mug. Boyfriend: Oh shit, I think i just had a BP Oil Spill.
Girlfriend: WTF does that mean?
Boyfriend: *never returns her calls*
Girlfriend: WTF does that mean?
Boyfriend: *never returns her calls*
by TacoMann August 20, 2010
Get the BP Oil Spillmug. Me and my boyfriend just left the Fall out boy concert. I fucked him with a dildo so hard I gave him a BP Oil Slick.
by hornstar1964 July 30, 2010
Get the BP Oil Slickmug.