1. A thin person with long thin legs
   "The lanky basketball player was often called spindleshanks by his teammates";
   - spindlelegs
    
2. Long thin legs
   "The fashion model's spindleshanks accentuated her height";
   - spindlelegs

Type of: leg, peg [informal], pin [informal], scrag, skin and bones [informal], stick [informal], thin person