Also, the use of said grenade launcher.
HonestFive: "Oh come on man don't noobtube!"
"Dude, this kid with the noob tube killed me like 6 times already, its really pissin' me off!"
Surprisingly, despite its name, it's not primarily used by noobs, or newcomers to the game. It's actually used more by assholes that are well into the game already but only use it to piss off their opposing team. And unfortunately, they usually do succeed in pissing off their enemy which could (and normally does) result in the enemy team changing their class to a noob tubing class while saying something like "Oh you wanna noob tube bitch? I can do it too", and that results in an entire game session being nothing but noob tubes and/or RPG's, depending on who's in the game.
Highly disliked by the majority of the gaming community. Avoid noob tubing at all costs to ensure that you don't start a tubing chain-reaction.
Teammate 2- I swear to god. If i get tubed one more time i'm gonna bust a nut.
T1- Alright fuck this game....
T2- Come on. Don't rage quit.
T2- Son of a bitch *facepalm*
Term widely used in the online gaming community for any kind of Rocket launcher, Most commonly used by gamers who beleave the weapon is very effect in many situations, Some also call the person using the weapon, Cheap, or Lame, or what have you