1 definition by NoMeansYesYesMeansAnal

A very risky sex act that also serves as a viable alternative to figuring out your girl's Facebook password. To complete the Guantanamo, the man must receive oral sex from the woman, upon reaching orgasm he will pull the woman's shirt over her face, and waterboard her with his potential children.
My tinderdate needed therapy after I pulled a Guantanamo on her last night.

I heard Bob got Susan to admit to cheating on him by performing an expert "Guantanamo" on her in the Arbys bathroom.

The Guantanamo is a great way to break in a new love interest.
by NoMeansYesYesMeansAnal June 17, 2020
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