a narrow flattened pleat or fold that is stitched in place (sports) a bodily position adopted in some sports (such as diving or skiing) in which the knees are bent and the thighs are drawn close to the chest eatables (especially sweets) fit snugly into; "insert your ticket into the slot"; "tuck your shirtail in"
The end portions of the top or bottom flaps of a folding paper box (carton) which are inserted inside the container to hold the end (top or bottom) flaps in place Various types of cuts and shapes of tuck ends have been developed to hold the flaps, the most common being a pair of notches at the fold which engage the side flaps and hold the end flaps in place
If you tuck something somewhere, you put it there so that it is safe, comfortable, or neat. He tried to tuck his flapping shirt inside his trousers She found a rose tucked under the windscreen wiper of her car one morning
You can use tuck to refer to a form of plastic surgery which involves reducing the size of a part of someone's body. She'd undergone 13 operations, including a tummy tuck