1
                           general:: 
                            Phrase(s): keep someone or something off 
Go to hold someone or something off., Phrase(s): keep off ((of) something) 
to remain off something; to stay off of something. (Of is usually retained before pronouns.)  •  Please keep off the grass.  •  This is not a public thoroughfare! Keep off!  •  You had better keep off of my property., Phrase(s): keep someone or something off ((of) someone or something) 
to make sure that someone or something remains off someone or something. (Of is usually retained before pronouns.)  •  Keep that woman off of me! She’s obsessed with me!  •  Please keep Timmy off the couch.  •  Keep him off!
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs
                        
                        
                    
                    
                        2
                           general:: 
                            1. Ward off, avert, as in She used a bug spray to keep off the mosquitoes. [Mid-1500s] 2. Stay away from, not touch or trespass on; also, prevent from touching or trespassing. For example, They put up a sign asking the public to keep off their property, or Please keep your feet off the sofa. [Late 1500s]  Also see  HANDS OFF.
                        
                        
 
                        
                            American Heritage Idioms