tuck up

Translations
подворачивать, подгибать
She tucked up her skirt to wade through the stream.
Она подвернула юбку, чтобы перейти через ручей.
Definitions
To tuck up means to arrange or fold something neatly, often referring to bedding or clothing, to make it more compact or to secure it in place. It can also imply making oneself comfortable or cozy, especially when getting into bed.