A vular word for ass. Typically used in South Texas.
Angela este jabón huele a sieso!
by G&R Dictionary April 1, 2020
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bulgar term used for pussy or vagina. Can also be used to express excitement or surprise.
Pedrito: Alex Rodriguez made another home run!

Juan: El sieso!!! (Damn!)

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El sieso de esa morena si es grande: That girl's pussy is pretty big.
by rolan2 July 13, 2008
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