trunny is just another way to express something that is amusing.
your hat fits hella trunny on your head.
by masterofthesike May 09, 2005
Trunny is a combination of true and funny and works as a replacement for "It's funny because it's true."
Gosh! When I saw Victoria pass by my zipper broke! Trunny story!
by EVD May 07, 2012