A con game played with a chain, belt or string that is laid down to form two open loops. The mark places a finger or stick in one of the loops to try to secure the chain when it gets lifted, but the con artist is able to prevent this no matter which loop was chosen.
An owl (order Strigiformes) that is nocturnal.
A musical instrument which imitates an owl's hoot, consisting of a receptacle partly filled with water and a mouthpiece that is blown into.
One who goes to bed late, or stays up late at night or in the early hours of the morning.