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.
Brian: Suhhhh dude! I just gave Tiffany a Dirty Summer. Tim: Righteous!
by Auntie Diddles April 27, 2018
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The way you feel after not going home for several days due to non-stop partying and other activities.
Man #1: I haven't been home in 4 days. I'm covered in alcohol, urine, sweat and what I hope is a McFlurry.

Man #2: You are so Summer Dirty.
by Josh the Shweff May 18, 2010
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