1) The map named 'Rust' on MW2/MW/CoDM, which is where the term originated
2) The game 'Rust', which is also an FPS
Each have their own backstory. The cod map is often where the most brutal bloodshed take place, while the game itself is brutal on a whole other level.
User 1: 1v1 me rustm8 User 2: Nah, not feeling enough balls today
It mostly occurs when you challenge or get challenged to a 1v1. and you or the other player get to a point of the map were they can kill you at any and all spawns. As soon as you spawn, you get killed.
This is one of the most annoying things in gaming.
"LOL SCRUB IS FREKING SPAWN TRAPING IMA GO 1V1 SOMEONE THAT HAS SKILL AND WONT SPAWN TRAP.!"