When you see an extremely good boy. It could be a kidden any dog, a bat, dinosaur, or yes even a chicken doing something that makes you love it so much you could murder it on site.
The act of laughing so hard that you almost, or in fact do end up puking.
Also the term used when someone is laughing so hard their struggling to breath.
Jerry was laughing so hard at what Tom said that he started paughing.