Meaning of “(as) tough as old boots” in the English Dictionary

british dictionary

"(as) tough as old boots" in British English

See all translations

(as) tough as old boots

UK

very strong, and not easily made weaker:

He might be in his eighties but he's tough as old boots, that man.

US also (as) tough as shoe leather informal Tough food is very difficult to cut or eat.

(Definition of “(as) tough as old boots” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)