Paarrrrrrpppp
The crazy laugh you make when you're so amused you feel like you might fall over.
My mom had a paarrrrpppp when I told her I used a banana for a math problem.
My friend had a paarrrrpppp when I told him I danced in the grocery store.
My uncle had a paarrrrpppp when I told him I tried to eat a whole pizza in one bite.