1. The (male) leader of a pack, usually earned his place through instilling fear in others. The pack is usually smarter than the alpha male, but is more afraid to have him as an enemy than a friend. Through evolution, however, the original alpha male behavior is becoming different; what was once fear of the leader himself, has now become fear of whatever the alpha male considers a threat to him. Despite the rank or power the alpha male may achieve through his methods in society, it is still a primitive role to have, due to the selfish nature of his life. Rest assured, if the pack ever had the chance, they would probably remove his role from their society without hesitation.
2. The dudes that pick who they want on their shitty teams in gym class. Arch nemesis of the nerd-people.
1. President Bush is an alpha male, if you know what I mean.
2. Greg, the alpha male, picked Scott for his dodgeball team; everyone thinks it's because Scott is well-built, but really Greg is just a closet homosexual and will jerk off to a picture he has of Scott when he gets home. He will then watch Sex in the City and drink cranberry juice.