V. When a person is cycling between "dating" two different girls with equally dirty vaginas. Typically used when a player switches between seeing two or more less-than-hygienic girls. A twat shuffle is typically seen 3 to 4 times on an average episode of Maury.
John: I just saw Carl with Jess! I thought he was going on a date with Jamie!
Mark: Nah he changed his mind last night.
John: Ohhhh, classic twat shuffle.
Carlos: Did you see Maury yesterday? One guys tried to twat shuffle 4 girls and got caught! That dude's life is over.