A play on words, also known as a homophone, involving the name Juan and the word 'one' or any other word which creates the 'wha' sound, i.e. one=Juan.
Juanisms are a common occurrence in the United States. However, due to the less frequent occurrence of the name Juan, Juanisms are particularly entertaining in English speaking countries where the Latino population is significantly lower. ex. Canada
Examples of Juanism(s);
juanderful, juan on juan, buy juan get juan free, two for the price of juan, the Juan and only, juant not waste not,...you get the idea.
This is a religion in which all friends of Juan gather together and do the most random shit ever. In this religion, you are forced to eat, breathe, and praise guitars. If disrespect the guitar gods, you will face harsh punishments.
An example of how the Juanists praise guitars in Juanism:
Juan: All hail the Almighty Guitar!
Juanists: Hail! Hail! Hail! Hail!
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"