Given as a sign of full approval. Derived from the voting system on Threadless, it's become a show of love for a remark, design, person, etc. Primary use is in the Community Forum, but could extend to the "real" world.

Refering to Highway 5 that stretches from the California/Mexican border in San Diego, all the way up to Canada.

The 5 is a very serious group of men, not boys. People might try to copy the name or start a false image. In the end everyone knows who the real 5 are and nothing could change that. Not even a bunch of girls who don't have a 5.

Wine described by the volume (for example 10.5%)

The shortest form of the hugely popular expression "Laughing Out Loud". The evolution from "Laughing Out Loud" to the expression "5" is as shown here:

1. Laughing Out Loud - (Original)
2. lol - (Original -> Acronym)
3. 101 - (Acronym -> 1337 Acronym)
4. 5 - (Binary -> Decimal)

By using "5" instead of "lol", 1337 typists save 66% of their time, thus the need for the expression "5".

Typically a situation that warrants a "5" is funnier than a situation in which "lol" will suffice.

To put your balls on another's face; to teabag someone.

A pussy safety on lee's summit west high school football team. He did a cheap shot on a player in the 2010 Missouri class 5 state championship game.