British & Australian, informal

to be extremely good.

Have you tried this double chocolate-chip ice cream? It's the bee's knees, it really is.

• be done to death
• be down in the dumps
• be down in the mouth
• be down on like a ton of bricks
• be down on luck
• be down on someone like a ton of bricks
• be down on uppers
• be down on your luck
• be down on your uppers
• be dressed to kill
• be dressed up to the nines
• bedroom eyes
• be dropping like flies
• be duck soup
• be duty bound
• be duty bound to do something
• be easy meat
• be easy on the ear
• be easy on the eye
• be economical with the truth
• beef up
• beef up something
• been around
• been around the block
• been had