if you have a rude awakening, you have a severe shock when you discover the truth of a situation.

We had a rude awakening when we saw the amount of our phone bill.

You've been so spoiled by your parents, you are in for a rude awakening when you start to look after yourself.

• Let's get this show on the road.
• let sleeping dogs lie
• let slide
• let slip
• let slip something
• let slip through fingers
• let slip through your fingers
• let someone alone
• let someone be
• let someone down
• let someone go
• let someone have it
• let someone in on
• let someone in on something
• let someone off
• let someone off easy
• let someone off the hook
• let someone slide
• let someone slip through fingers
• let someone slip through your fingers
• let something be
• let something go
• let something ride
• let something slide
• let something slip