to undo a tuck or tucks in; free from a tuck or fold
(third-person singular simple present untucks, present participle untucking, simple past and past participle untucked)
- To remove something from a relatively hidden location or position.
- As soon as work is over, I'm going to untuck this shirt and take off my shoes.
- The cat will wake up in a tightly curled position, then untuck her head, and gradually her limbs, and then stretch.