be (as) tough as old boots

be (as) tough as old boots

1. To be very physically strong and resilient. Marty has played in 500 straight games without so much as a sprained ankle—he's as tough as old boots. My grandfather did a lot of physical labor around the family farm, so he was tough as old boots.
2. To have a tough, leathery texture. Said especially of meat. This meat is as tough as old boots—I can't even cut it!
3. To not feel or show one's emotions; to be very stoic. Our aunt is as tough as old boots, so we asked her to give the eulogy, knowing that she's the only one who could do it without crying.
4. To be extremely stubborn or determined. You'll never get Rich to change his opinion—he's as tough as old boots.
See also: boot, old, tough
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