Biffly
Unlike Best friends, you can only have One Biffly, Your biffly is an Amazing friend who is always there for you and will do anything for you. You sometimes go through rough times, but that doesnt mean you can't make up and remain friends. A biffly is that person in your life that won't leave your side.
The Name for the Biffly in my life is Erin, i love her so much. EMC <3