Reversal of the process of legitimization, see What people do to Bobby Liu
"Oh man, I'm so good at Pikachu!"
(Pikachu dies, and the player loses.)
"Smack! You just got delegitimized!"
imperative, command to introspectively analyze one's life and come to the conclusion of worthlessness, see kill yourself
"You just got hit in the crotch with a melon! Feel good!"