Best definition
Wet Mexican
The act of taking a dump and ejaculating at the same time. This can happen with a female partner or

if one is lonely enough to try it themselves.

I heard Johnny got that bitch to say yes to a Wet Mexican!
Wet Mexican: define #2
Wet Mexican
Getting a lot of lube and a lot of oil and dousing oneself with it. Then pour the oil on a Latina girl and hit it from the back.
Yo bro I got that Rodriguez girl to give me a wet Mexican