What does «destender» mean in Spanish?

Remove bedding or covers from the bed; undo it.

♦ Used in: Argentina - Bolivia - Chile - Colombia - Peru - Uruguay

Examples of use in Spanish: "¡si te sigues moviendo así en la cama vas a destenderla!".
Remove or collect the clothes that had been laid out to dry.

Examples of use in Spanish: "te sugiero destender la ropa que lavaste porque lloverá esta noche".