gag bag
A gag bag is a total dirtbag who makes you want to puke in a bag and probably smells like old socks and regret.
My cousin is a gag bag. He eats pizza and then goes to the mall and smells like a garbage can.
My teacher is a gag bag. She yells at kids and eats donuts for lunch.
My brother is a gag bag. He took a dump in the pool and then tried to blame the dog.