1
                           general:: 
                            Phrase(s): hold someone or something over 
to retain someone or something (for a period of time).  •  The storm held John over for another day.  •  The manager held over the hit movie for another week., Phrase(s): hold something over someone(‘s head) 
Fig. to have knowledge of something about a person and to use that knowledge to control the person.  •  So I made a mistake when I was young. Are you going to hold that over my head all my life?  •  Please don’t hold that over me anymore.
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs
                        
                        
                    
                    
                        2
                           general:: 
                            1. Postpone or delay, as in Let's hold this matter over until the next meeting. [Mid-1800s] 2. Keep something in a position or state beyond the normal period, as in The film was to be held over for another week. [First half of 1900s] 3. Continue in office past the normal period, as in The committee chair held over until they could find a suitable replacement. [Mid-1600s] 4. Hold something over someone. Have an advantage or use a threat to control someone. For example, They knew he'd been caught shoplifting and were sure to hold it over him. [Second half of 1800s]
                        
                        
 
                        
                            American Heritage Idioms