shoo /ʃuː/verb 3exclamation 1forms 3phrases 2 verb3 •(informal) To induce someone or something to leave.Don't just shoo away mosquitoes, kill them!See if you can shoo off the insurance salesmen. •(informal) To leave under inducement.You kids had better shoo before your parents get a call. •(informal, rare) To usher someone.Shoo the visitor in. exclamation1 •(informal) Go away! Clear off!Shoo, fly, don't bother me! formsshooed · shooing · shoos Phrases with shoo shoo awayto get rid of, to chase away shoo offTo send away; to shoo.