What non-technical term is given to a condition where the thumb, when extended (as in a 'thumbs-up'), stretches backwards toward the nail and outwards?
Racquet nail Racquet nail In racquet nails (also known as trachyonychia(reference-SRB's manual of surgery), nail en raquette, and racquet thumb), the nail plate is flattened, the end of the thumb is widened and flattened, and the distal phalanx is abnormally short. In racquet nails, the width of the nail bed and nail plate is greater than their length. The condition is painless and asymptomatic. Racquet nails usually occur on one or both thumbs, but may appear on all fingers and toes. It may be genetic, inherited as an autosomal-dominant trait, or acquired. Genetic disorders associated with racquet nail include Larsen syndrome, Brooke–Spiegler
Cat's paw (nail puller) in the mid-19th century, wood was viewed as so plentiful in North America that if it became necessary to change one's location, "you might even burn your house down and pick up the nails in the ashes". Back then, nail pullers were designed to preserve the condition of the nail for reuse, and thus the design of most nail pullers ended up being what is known as the slide hammer type, which is still used today. Old lumber has now become much more valuable than the nails that might hold it in place, so there has been a move toward