"From where you're kneeling it must seem like an 18-carat run of bad luck.
Truth is...
the game was rigged from the start"
The name Courier is what the the main character, good or evil, is referred to by the NPCs of Fallout: New Vegas, and is the default name the player character is given at the start of
the game. The Courier is known by many deeds however the
player chooses but is most notably known for surviving a 9mm round to the head.
Ulysses, a character in the plot of Fallout: New Vegas' DLC "Lonesome Road", also refers to the courier as not just the courier but also as courier 6
"You can't kill me, wanna know why? I'm Courier motherfucking 6, so ring-a-ding-ding motherfucker"
"You can
count on the Courier to make
sure your task for them is completed no matter what gets in their
way"