Definition of run out
                                                                                                    
                                                                    
                                                                    
                                                                                                                 leave suddenly and as if in a hurry; "The listeners bolted when he discussed his 
strange ideas"; "When she started to 
tell silly stories, I ran out"
                                                                        
 
                                                                    
                                                                    
                                                                    
                                                                    
                                                                    
                                                                                                                 use up all one's 
strength and 
energy and 
stop working; "At the end of the march, I pooped out"