(as) tough as old boots
phrase
British, informal
: very tough
This steak is as tough as old boots.
Don't worry about her—she's as tough as old boots.
Cite this Entry
“(as) tough as old boots.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/%28as%29%20tough%20as%20old%20boots. Accessed 9 Mar. 2026.
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Merriam-Webster unabridged
