informal

crazy.

Tell me frankly: do you think my father's round the bend?

I was sure I'd locked that door. I must be going round the bend.

• let speak for themselves
• let's see
• letter of the law
• let the cat out of the bag
• let the chips fall
• let the chips fall where they may
• let the devil take the hindmost
• let the genie out of the bottle
• let the grass grow under feet
• let the grass grow under your feet
• let the side down
• let things slide
• let up
• let up on
• let up on someone
• let up on something
• let well alone
• let your hair down
• let your heart rule head
• let your heart rule your head
• let yourself go
• level off
• level playing field
• level the playing field
• level with