When a man performs oral sex on a woman who has a yeast infection. The vagina will have the distinct aroma of freshly baked sourdough bread with the appearance of oozing warm Roquefort Cheese.
Squadouche means zero, zip, nada, nothing, perhaps even less than nothing.
"So I've been out on 5 dates with this chick, I figured I would've gotten laid by now. I haven't even gotten a kiss yet. I got the big squadouche with this girl!