I know this isn't really helping, but I did that too.. I need help also!
What are those pink things over there? This is our last chance to do the right thing. somebody call 911! I've got to say: I'm feeling pretty proud of myself right now. you have no idea who you're messing with. Just who do you think you are?
Answer:
A character expects the opposite of what the reader knows will happen.
A character acts in a way the reader knows to be unsuitable or untimely to the actual circumstances.
A character makes a statement that the reader recognizes as sarcastic but which the other characters in the story may not.
Explanation:
Dramatic irony is defined as the "When the audience knows something the character does not"
In all of these situations, the character does not know what is happening but the audience does.