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Mexican Saturday is when you're sick at one or both ends after a Friday night diet rich in margaritas and Mexican food.
Can also be the feeling of regret the morning after having sex with someone suffering from a Mexican Saturday.
We had a good time last night but it turned into a real Mexican Saturday. He woke up puking from both ends and I regretted the hookup.
by snackyNapkins January 30, 2015
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