A dirty summer is when a girl is getting fucked on her period. The man then pulls out and mouth fucks her until her lips are bruised.
by Auntie Diddles May 30, 2018

Guyone: "Dude, did you f*ck Katie last night?"
Guytwo: "Yea but she had dirty cum, it stained my f*cking sheets, man!"
Guyone: "That's F*CKING NASTY!"
Guytwo: "Yea but she had dirty cum, it stained my f*cking sheets, man!"
Guyone: "That's F*CKING NASTY!"
by brynnger March 13, 2009

When one person sticks their arm up someone else's ass, pulls poop out with their bare hand, and then eats it.
Jim: "Ugh, I can't believe I gave Tim the dirty elephant last night."
Mark: "Yeah, man. You'll never live that shit down."
John: "Haha I get it! Live that shit down! You so funny Mark."
Mark: "Yeah, man. You'll never live that shit down."
John: "Haha I get it! Live that shit down! You so funny Mark."
by lolomgitsmatt36 September 12, 2010

When everything goes wrong while having sex. Having multiple, often hilarious, mishaps while love-making. In other words, when a single fuck becomes a cluster fuck.
While getting on top of your partner, you accidentally check her in the jaw. Then, while repositioning, you almost throw her off the bed. Next, you get a bloody nose and bleed all over her. Finally, when returning to the bedroom, you bring only a single sheet of paper towel to clean up, and your lover sneers, "Really? What the hell? Is this the dirty south?"
by Comedy of Errors July 11, 2011

by TYSXR April 19, 2020

by Jon Ace September 30, 2006

A sexual encounter where one climbs on top of their mate and wiggles vigorously up and down. As if swimming upstream.
by FPIA May 20, 2010
