Skinny Leg Syndrome

When individuals who strength train (usually men) are so preoccupied with having large arms and chest that they neglect leg exercises. The result is a top heavy looking individual with chiseled arms, chest and maybe even abs but with hilariously skinny legs. Essentially taking on the appearance of a mismatched Lego Minifigure.

Brenda: look at that at that guy lifting like 150 over there.

Jannet: he's got a nice upper body, too bad he's got skinny leg syndrome. Those legs look like toothpicks and he has no ass.