A river in northern Italy that Julius Caesar crossed, saying "fuck you" to the Roman government at the time.

When a guy crosses the Rubicon with a girl, it is basically the point where it is impossible for them to be just friends. It is the "at bat" portion of the baseball game, and the next step for the guy is to get to first base or strike out. In other words, the guy either ends up in a relationship with the girl, or he fucks it up and they never speak to each other again. But, either way, it's far better than being in the Friend Zone, and crossing the Rubicon with a hot girl is always something to be admired.

badass jeep that costs way less than an h2 but is way fuckin better unless ur a soccer mom

The line crossed when you find yourself too good of friends with someone to date them.

"rubicon" is the most amasing soft drink wen drunk or stoned or both, with take away food is best! yes! 3 cheers for rubicon

One that is beyond unatainable.

The act of hitting or being hit in the face with another man's penis.

Rubix Cube Convention