British, American & Australian, informal, Australian

to be completely deaf.

She's 89 and as deaf as a post.

• let be
• let bygones be bygones
• Let bygones be bygones.
• let down
• let fly
• let fly something
• let fly with
• let fly with something
• let go
• let go of
• let go of someone
• let go of something
• let hair down
• let have it
• let heart rule head
• let heart rule your head
• let her rip
• let in on
• take something by the throat
• take something for granted
• take something in good part
• take something in hand
• take something in stride
• take something into account
• take something into own hands