A type of BASE jumping requiring little to no skill but high risk where participants climb up very high antennas (usually around 900’) and jump off taking a slider down delay. This aspect of BASE jumping is usually performed by people lacking basic knowledge and ability to not piss themselves when jumping slider down.
A game somewhat popular in Southern California (specifically the 760/909 area codes)
The objective of the game is to say the words "Slider Justice" whenever your friends are zoned out or not paying attention. If they don't realize you've said slider justice, then you slap them in the face.
If used responsibly, it can be quite hilarious. But if abused, it can really be annoying.