Английский словарь американских идиом - lie low

or {nonstandard} lay low {v.}, {informal} 1. To stay quietly out of sight; try not to attract attention; hide. * /After holding up the bank, the robbers lay low for a while./ 2. To keep secret one's thoughts or plans. * /I think he wants to be elected president, but he is lying low and not saying anything./