When a guy blocks a guy from having sex they are called a cock blocker but when a girl blocks/ stops another girl from having sex they are called a twat swater.
Shauna: Hey heard you finally got into Tristans pants last night, Congrats!

Kayla: Almost but Lexy came in totally wasted and totally ruined it. She's such a twat swater!

Shauna: Bummer!

Kayla: Yeah
by K-Katastrophe January 10, 2011

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