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.
by akaidk August 05, 2009

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.
by Browtf69 September 28, 2017

Pouring a shot of tequila down an ass crack (using the crack as a funnel to shoot tequila down your throat i.e. tequila luge) while tongue punching the fart box.
How far did you get with Emily last night? Nothing but a Mexican wet whistle, did about 4 and called it a night...
by ZCV99 February 06, 2019

“Damn, Adam gave me a Mexican Wet Willy last night after we ate mango habanero wings. I had to douche with ranch to cool down.”
by SaraMrk June 25, 2021

The act of giving a regular wet willy but instead of saliva, you stick your finger up your nose and then in the victim's ear.
by Aaron The Terrible May 14, 2018

When you accidentally cum in a chick so you try to suck it all out with your mouth and swallow it to prevent her from getting pregnant.
by DirtyJalapeno May 10, 2011

I told my friend Ivis about the Canta Ritos Hard Soda and he stated, "I'm about to have a Mexican Wet Dream."
by StaySarcastic April 27, 2023
