I have to pee like a monster - You need to pee so much you think you're going to explode, a

You need to pee so much you think you're going to explode, and you're mad because there’s no toilet nearby.

During the soccer game, I had to pee like a monster. I ran off the field and peed in the bushes.

In the middle of a test, I had to pee like a monster. I had to go to the bathroom and missed the last question.

During a long car ride, I had to pee like a monster. I said, 'I’m going to pee in the backseat if I have to.'