Skulduggery: underhanded behavior; a devious trick
Slobberchops: a messy eater
Sooterkin: a sweetheart
But who knows? Sometimes old slang comes back. For instance, the 2007 Fergie song "Glamorous" included the term "flossy", which is a mid-1800's term for "very stylish" (think old-timey "bling").
If Fergie can bring back old slang, maybe we can, too? Let's try: My sooterkin is such a slobberchops that whenever he wants to go to a restaurant, I have to pull skulduggery to get out of it! :)