a show-stopper - a performance or part of a performance that is extremely good.

She gave a show-stopping performance in La Traviata. (always before noun)

• can kiss goodbye
• can kiss something goodbye
• cannon fodder
• can of worms
• can on ear
• can on their ear
• can talk the hind leg off a donkey
• can talk the hind legs off a donkey
• can talk the legs off an iron pot
• can't be arsed
• can't be bothered to
• can't be bothered to do something
• can't believe ears
• can't believe your ears
• can't boil an egg
• can't complain
• can't cut the mustard
• can't do something for nuts
• can't do something for toffee
• can't do something to save life
• can't do something to save your life
• can't for nuts
• can't for the life of me
• can't for toffee
• can't hear think