The term, “rekt” is a slang form of the word, “wrecked”, which means, “utterly destroyed”, ”soundly or completely defeated”, “wasted”, or “dominated”.
The word rekt is at times used within the context of multiplayer gaming. In such a setup, the term pertains to one player or an entire team who gets to be severely beaten by the opposing party.
The term might even go as far as to describe a match wherein the opponents are not at par with each other with consideration to skills, leading one party to be completely demolished by the other team.
Another accepted definition of the term is that someone is extremely drunk or high.