D defs.my
Entry 1 sense Webster, 1913

Untuck

· Un·tuck · IPA /ʌnˈtʌk/
01 v. t. To unfold or undo, as a tuck; to release from a tuck or fold.
  1. 1.
    To unfold or undo, as a tuck; to release from a tuck or fold.