When you are sixty-nining with a girl, but you end up vomiting on her, so she ends up with a mouth full of cum and a pussy full of vomit. A "Satchel" if you will.
Someone who is academic master, and is outgoing, unless it’s public speaking. Satchel will be there for you, but sometimes keeps to himself. He is fun to hang out with, and is a bit weird. He is also a very funny person. If you happen to meet a Satchel, make sure to to befriend him. He will be a very good friend of yours.