Tryhard

Typically the type of gamer who applies competition to every situation, for example, killing friendlies in TF2, or being a general asshole in a casual or friendly setting by constantly killing players.
Also used as an insult by players lacking in skill when killed by a superior player, although this is the rarer occurrence, and the insulter is usually berated by other players.

1. Can we please kick this tryhard back to a comp server? This is a trade server for a reason.
2. Oh my god, fucking tryhard, get a life lol.