Have you ever played with someone who talked so much trash you knew you had to bring your A-game, but soon realize he or she was a horrible player beyond description.
A Roob in gaming is a type of rare noob. Roobs are typically easy kills and for the most part a waste of time. Roobs unlike noobs, don’t learn from their mistakes. Examples of a roob would be someone who uses the same weapon in a game knowing it’s ineffective. A One trick pony or spammer. They tend to use the same moves without the intention of learning new ones.