shrug (your) shoulders

to not care or feel unable to do anything.

The reason most people aren't excited about the election is that both candidates leave them shrugging their shoulders.

Related vocabulary: shrug something off

Etymology: based on the literal meaning of shrug your shoulders (= to move your shoulders up as you move your head down to show you do not care or are discouraged)

• be off rocker
• be off the beaten track
• be off the blocks
• be off the hook
• be off the mark
• be off the starting blocks
• be off the wall
• be off trolley
• be off your chump
• be off your nut
• sit on arse
• sit on backside
• sit on hands
• sit on the fence
• sit on your arse
• sit on your backside
• sit on your hands
• sit through
• sit through something
• sit tight
• sitting duck
• sitting on top of the world
• sitting pretty
• sit up
• sit up and take notice