Build-up on or around toilets, drains, or mouths, Pond scum, caked on food, crusty excess, or corrosion. "I am so disgusted at the schwag muck that is around the toilet bowl". "I refuse to stick my hand in that scwag muck!"
de Staci Rogert, *"PINKIE"* 1 février 2013
Can you define these popular missing words?