An adoring nickname for one you hold in highest esteem, more commonly known as a best friend. A bestie is the person who you not only go shopping with on a regular basis but also trust implicitly with anything.. besties do not come and go like waves and sandcastles, they are more like permanent marker on American Eagle jeans, they'll stay with you forever. It is much better to have one pure andgood bestie who is true to you then multiple 'besties' (even though if theres more than one t usually will not count as a bestie, technically) who are only like pants that stay with you only until you get too fat for them, or you tear them (like hurting them, and then them being all unforgiving), or just until they fade. A true bestie would stick with you through all of it, walking in when the world walks out.

Your favorite person in the world. Kind of like your best friend, except better.

a best friend, originally british slang, its just awesome

The one person you can always count on when shit hits the fan.

Short for "best friends".

Someone you love, someone you absolutely can not live with out.

Very very special

Two people who are more than best friends that are obviously meant to be together.