From Longman Dictionary of Contemporary Englishput something behind you phrasal verbFORGETto try to forget about an unpleasant event or experience and think about the future She had dealt with the guilt years ago and put it behind her. → put→ See Verb table
Examples from the Corpus
put behind • Counseling helped her put the trial behind her.• Banks is an immensely amiable, bearded ex-beatnik who feels that he is at last putting his past behind him.• I made the decision to put my marriage behind me, forget about it, and start over again.• So that by the time I arrive home I have put this nostalgia behind me.• The team have put last night's loss behind them and are looking forward to next week's game.• Although their families still mourn their loss, they have tried to put their grief behind them and rebuild their lives.• We are trying to heal the divisions, put the past behind us.• That trip clearly put the championship behind us.• Try and put the incident behind you and get on with normal life.• Just put it behind you for ever. 