bug out bag is also called as emergency go bag that would help you in case of emergency situations where one cannot lose the time to decide on the things that can be carried. having a list of all the things that would be necessary during an emergency would save a lot of time during the last minute. if you have such a bag prepared for an emergency, all you have to do is to just grab it and run for safety during an actual emergency.
a typical emergency go bag would have food, water, a medical kit, an identification proof, a small shelter making kit, a knife and some clothing. 