sarcasm
ˈsɑːkaz(ə)m/
noun
the use of irony to mock or convey contempt.
"she didn't like the note of sarcasm in his voice"
synonyms: derision, mockery, ridicule, satire, irony, scorn, sneering, scoffing, gibing, taunting;

__________________
[I]and then we discovered it wasn't the Robot King after all, it was the real one. Fortunately I was able to reattach the head.[/I]