Sneaky so-and-so

SLYDOG

This term combines a cunning trait with a loyal animal, often used to describe someone who’s cleverly deceitful in a playful way.

"Sneaky so-and-so" is a playful way to describe someone who’s crafty or deceitful, and "sly dog" is a common slang phrase for that kind of person. The clue plays on the literal meaning while hinting at the two-word answer, where "sly" directly means sneaky and "dog" is just a casual term for a person—like calling someone a "lucky dog." It’s a straightforward definition with a touch of informal phrasing to match the answer.