a woman, usually named Sofi, engaging in sexual intercourse with multiple men whilst other girls are present
Man 1: I’m so hard right now.

Man 2: Why?
Man 1: I had a dirty sofi last night.
by Dick Jones 69ed Your Mother April 22, 2020
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Dirty Sofie is when two individuals love having intercourse with cheese.

Or just being someone who loves cheese a bit too much.
"Me and your mom did the Dirty Sofie yesterday"
or

"I love doing the Dirty Sofie"
by Felicityx18 August 25, 2021
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When a group of Lesbians live together and make up every decision in the house by having a small orgy with each other
Yesterday at Ellies apartment they couldn't figure out who would get groceries in the quarantine so they Dirty Sofi'd it and Rachel had to go
by SKJOELL April 14, 2020
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