Snook, snooker and snookest. And snooky. He was a snook, so no one could trust him. He was snooker (snookier?) than a fox in a hen house. He was the snookest thief in jail. He was so snooky, that you always had to keep your eye on him.
Or, he snook booze into the party by hiding it in his pants. He's snooked booze into many places before.