Can someone please explain what irony means and give me an example thanks

saying the opposite thing usually for humor

Here is an example of irony:

Denise threw the bottle on the florr while John was looking. John asked "Did you drop the bottle?" Denise replied "No, I thoguht you were looking" with irony.

i think the answer would mist likely be an adjective clause, because unhappy is an adjective.

can you post the story