Pain in The Sack
When someone is so full of themselves they think they’re the only one who matters.
You say you’re tired and they say they’re not tired and then they start doing push-ups.
You say you’re going to eat and they say they’re going to eat and then they eat three times as much as you.
You say you’re going to pass the test and they say they’re going to pass it and then they say they got a perfect score.