v (context|of a drag queen) To conceal one's genitals, especially by fastening them down with adhesive tape.
v (context|when playing scales on piano keys) To keep the thumb in position while moving the rest of the hand over it to continue playing keys that are outside the thumb.
n An act of 'tucking'; a pleat or fold. (defdate|From late 14thC.)
n (sewing) A fold in fabric that has been stitched in place from end to end, as to reduce the overall dimension of the fabric piece.
n (medicine|surgery) A plastic surgery technique to remove excess skin.
n (music|piano|when playing scales on piano keys) The act of keeping the thumb in position while moving the rest of the hand over it to continue playing keys that are outside the thumb.
n (diving) A curled position, with the shins held towards the body.