A laugh - A laugh is when you say a joke was so good it made your brai

A laugh is when you say a joke was so good it made your brain feel like it just won the lottery.

I laughed when my friend told a joke so good I thought I was going to die from happiness.

I laughed when my teacher told a joke so good I forgot my homework.

I laughed when my little brother told a joke that made my dog laugh too.