What is Scramble ?
Scramble is (noun) 1. a rush There was a last-minute scramble for tickets. 2. a motorcycle race across rough country We went to watch the scramble and got very cold and wet.(verb) 1. to hurry, using your hands and knees if necessary He scrambled over the wall. 2. to rush Everyone was scrambling to get food. 3. to mix up a radio signal or telephone link so that it cannot be understood without a device for making it clear Calls from the army chief of staff to the president are scrambled.
source: Easier English, Student Dictionary Upper Intermediate Level