Feel the burn
Meaning
Experience the intensity of effort, especially while exercising.
Usage
Used in fitness to signal effective muscle engagement.
Origin & History
Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.
Exercise sensation when muscles burn from exertion.
Popularized in aerobics classes in the 1980s.