Long term round the world travel to see, touch, taste, hear, live and experience new places and cultures. That is the essence of a vagabond, backpacker and flashpacker. Despite the common purpose, there are distinct differences.
BACKPACKERS / Typically travelling for a month to a year in a single continent or all around the world on a limited budget and finite amount of time. Often younger on their “gap year”.
FLASHPACKERS / Similar to backpackers but with a higher budget and or travels with a fair amount of electronics / gadgets. Often older than typical backpackers and has previous long term travel experience.
VAGABONDS / A perpetual traveler seeking to explore as much of the world as possible. A truly dedicated explorer. Has set no time limit or fixed itinerary. Travel is their life, purpose, love and often career.