A Megnutian Collapse
When someone thinks they're the best, talks too much, and ends up getting totally destroyed.
'He was talking the whole time, and then he got destroyed.', @SportsTalker123
'They were up 5-0, and then they got crushed 0-5.', @LoserTeam456
'He thought he was the best, and then he lost the best.', @ChadTheChad