A dumb ass lil bitch who likes to juggle the nutsacs of those above him in order to move up the ladder.
Leifers often try desperately to impress everyone but doesn't realize everyone can read right through them. They add absolutely no value to society or the organization that employs them.
Leifers are commonly seen in their natural corporate habitat with sweat on their brow and manjuice in their hair while exiting the elevator with one of his superiors. They also have peculiarly beady eyes that creeps the hell out of everyone around them.
Did you see that boy Leifer? Dude looked like he just gave the full service package to the SVP!