When you're spooning with your boo and you accidentally pass wind. This usually happens when the partner's knees are tucked up tight to yours and your body is in already in the full bowel movement position. You feign sleep/suppress laughter when they react.
Magnus: I hooked up with this awesome girl last night, but I think I ruined it with a spoonfart.
When you and another person are in a public bathroom and both of you are waiting for the other to leave because you both have to poop and would like to poop in peace yet neither of you want to make the first move.
I sat in the walmart bathroom for 20 minutes in a stoolmate with the person next to me because we both needed to poop but neither of us would leave nor start pooping.
Noun.) A dump so large that it piles up in the toilet to the point it breaks the surface of the water resembling a cat sitting on a stool. Furthermore a Stoolcat can be sub-categorized depending on its physical attributes. i.e. The Calico Stoolcat (Corn and Water Chestnuts) The Siamese Stoolcat (Grey in color) etc.
Example 1:
Shawn: "Dude, was that you that just left a stoolcat in my toilet?"
Mike: " Ha! Yeah, i know how much you love those little guys!"
Example 2:
Jake: "Oh my god I have to crap so bad i bet i'll leave a stoolcat!"