be on the look out


be on the lookout

To be watching for something or someone. Be on the lookout for my email! It will have all the instructions you need for the project. A: "What are you guys doing?" B: "We're on the lookout for Mom's car, so we can tell Dad to stop working on her surprise gift when she gets here."See also: lookout, on

be on the look out

and BOLO phr. & comp. abb. establish and maintain surveillance [for someone]. (A police notation.) BOLO for a 65-year-old woman with tattoos on her upper arms. We’ll be on the look out for your stolen car. See also: look, on, out