not used before a noun
: seen or done many times and no longer interesting
I suppose my favorite joke's a bit old hat by now.
Making hit movies is old hat for/to him.
Cite this Entry
“Old hat.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/old%20hat. Accessed 19 Jun. 2026.
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