Curb your enthusiasm

Meaning

Limit your excitement until the outcome is assured.

Usage

Warns against premature celebration.

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.

Driving metaphor for slowing down momentum.

Became more widespread after the 1990s sitcom of the same name.