Definitions
1.NounA person usually of little talent who tries hard to succeed, especially through imitation, usually to gain fame or popularity.
2.NounA person who is perceived as putting too much effort into something recreational, such as a game.
3.AdjectiveDone to excess, to an embarrassing degree.
4.AdjectivePerceived as putting too much effort into something recreational, such as a game."They are being so tryhard right now."
5.VerbTo put perhaps too much effort into a recreational activity, typically a game.