what the ?

The President's "Hook 'em horns" salute perplexed Norwegians because to them, the sign is a salute to Satan. That is what heavy metal groups and their fans in Norway do when they throw up the right hand with the index and pinky fingers raised. For Texans, the gesture is a sign of love for the University of Texas longhorns whose fans are known to shout "Hook 'em 'horns" at sporting events.