giggleshmirts 

When someone has to shit and they laugh so hard a little bit comes out. Likely to happen when the person has diarrhea.

Will: Has anyone seen Andrea?
Rob: She went to the bathroom. She has a bad case of giggleshmirts.

giggleshmirts by C. Epic July 22, 2011

giggleshits 

1. A response to something hilarious yet very weird.

2. What happens when you laugh so hard that you start to make weird noises and are then overcome with the feeling that you are about to shit yourself.

1. Let's post this picture of an old guy's ass. Just for giggleshits.

2. Bob told me this great joke... before I knew it, I felt the giggleshits come on.

giggleshits by M!lk April 5, 2008