when you're having sex with a girl on the beach and right before you cum, you throw sand in her eyes, cum, and run away
She's totally pregnant, I gave her the Tijuana Surprise.
by the1js July 12, 2009
The accidental release of a small amount of diarrhea when farting.
I just got a Tijuana surprise. I should have avoided the taco stand last night.
by 1AnalWart November 29, 2015