|1.||under the radar|
when someone is in a situation where very little or no attention is drawn to them
somehow they managed to stay under the radar for years while skimming all that cash from the bank.
|2.||under the radar|
Another way of saying underground. the opposite of mainstream. Usually referring to an artist or song that is undiscovered.
Boy: This song is good. Who is it by?
Girl: It's by Bobby Bob, he's under the radar though.