PLAY POSSUM

{v. phr.}, {informal} 1. To pretend to be asleep. * /Johnny seemed to be fully asleep, but his mother knew that he was playing possum./ 2. To stay quiet for self-protection; try to escape attention by inactivity. * /The rabbit played possum under the bushes, hoping the hunter would not see him./ * /Bob played possum when the teacher looked around./