sit tight

sit tight  {v. phr.},  {informal}
To make no move or change; stay where you are. — Often used as a command.
Sit tight; I'll be ready to go in a few minutes.
The doctor said to sit tight until he arrived.
The gangsters sat tight in the mountains while the police looked for them.
Compare: STAND PAT.
Categories: {informal} {v. phr.}