Definition In my heyday
English vocabulary and translations (See all our English vocabulary translation)
In my heyday...: When I was at my best..., When I was in my prime...
In his heyday, Horatio could smell a jaguar 25 miles away.
- "They called me "fighting hell pigeon" in my heyday."
- "In their heyday in the mid-20th century, American labor unions provided a political force to be reckoned with."
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