Paarrrrrrpppp
The wild, profane laugh you make when someone makes you feel like a total fool.
My brother let out a paarrrrpppp when I told him I got a B in spelling but failed science.
My friend had a paarrrrpppp when I told him I dressed my goldfish like a pirate.
My cousin had a paarrrrpppp when I told her I cried at a commercial.