be as tough as old boots

(redirected from be as tough as nails)

be as tough as old boots

  also be as tough as nails
if someone is as tough as old boots, they are very strong and not easily injured 'Do you think Grandad will ever recover?' 'Of course, he's as tough as old boots.'
See also: boot, old, tough

be as tough as old boots

  (British, American & Australian) also be as tough as shoe leather (American)
if food is as tough as old boots, it is difficult to cut or to eat That steak I had was as tough as old boots.
See also: boot, old, tough