1 definition by Kachew

Top Definition
In Mexican culture, a slang term to to refer to the act of placing your mouth into contact with your partner's asshole. It can range from a simple kiss to more intricate making out such a licks, bites, sucks, tongue etc. i.e. a rimjob.
Literally translates to a "black kiss."
Girl 1: I gave Jason a beso negro last night. It was hot.
Girl 2: Oh yeah! I give my girlfriend besos negros all the time.

It is advisable to use a latex barrier when performing a beso negro on someone for the potential transmission of Hepatitis A, unwanted bacteria, and other STIs.
by Kachew November 15, 2009

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug