Sit tight
Meaning
Wait patiently and do nothing yet.
Usage
Used when delaying action is advisable.
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.
Instruction to stay seated or still.
Used in 19th-century military and theatrical contexts.