In the episode where Fred call a surveyor to mark the property line, Lamont park truck next to building almost blocking the front door. When Fred try to use the front door he get stuck between the building and truck. While Julio and Lamont try to get Fred unstuck, Julio tell Fred to call him Tio if he want get unstuck.

Tio mean uncle in Spanish, so was wondering there night be more meaning to that word since Julio kept insisting that Fred call him Tio. Apparently the word “Tio” is a Spanish slang term that is commonly used to refer to a friend, mate, buddy, or uncle. It is used directly to refer to someone in a friendly and familiar way, in a similar way to how Brits say mate or Americans say dude or man.

Now I see why Julio insisting that Fred call him Tio.

https://thesource.com/wp-content/uploads/2021/01/Screen-Shot-2021-01-23-at-9.19.40-AM-600x400.png

It was a kids' game called "Uncle". One kid gets tackled and pinned down or otherwise punished until they cry, "Uncle". It's childish, but Julio wanted to, just once, put Fred in his place.

It was a kids' game called "Uncle". One kid gets tackled and pinned down or otherwise punished until they cry, "Uncle". It's childish, but Julio wanted to, just once, put Fred in his place.

I think you are right because I found this sentence in Wikipedia that support it. In explanation origin of the term "say Uncle", it said origin might have came from the English phrase “time out”, a plea to cease hostilities. The abbreviated usage "T.O." was mistaken for the Spanish “tío”, which means "uncle". I think that pretty much explain it. Thanks :)