Sarcasm.

–noun



1. harsh or bitter derision or irony.


2. a sharply ironical taunt; sneering or cutting remark: a review full of sarcasms.
 
A form of irony in which apparent praise conceals another, scornful meaning. For example, a sarcastic remark directed at a person who consistently arrives fifteen minutes late for appointments might be, “Oh, you've arrived exactly on time!”


Taylor Swift is AWESOME.