“Tump” is not a real word. We say it all the time, but it isn’t legitimate. If you look it up in the regular dictionary, it won’t be there. Old dictionaries may have it, but they define it as a “little hill.” That’s not the “tump” I’m referring to. I’m speaking about when you “tump” something over; a wheelbarrow can tump over; a garbage pail can tump over; and even a car can tump over.