A type of hair style where a girl quickly puts her hair in a bun on the top of her head in an disorderly fashion. The majority of girls you see in public with this hair style are in fact huge bitches. A bigger bun results in a bigger bitch.
Guy1 "Wow, why was Teagan being such a bitch last night??"
Guy2 "Didn't you notice her bitch bun? I saw that and could tell she was going to be trouble"
(n.) -when a basic-ass bitch puts her hair up in a nappy-ass bun, and usually tweets about it with 10-15 hashtagged phrases, such as: #lazy #stillcutetho #starbucks #pumpkinspicelatteyum #comfy #bunnedout #uggs #sweatpants
Has anyone coined the term "basic bitch bun"? No? Let's go do it right now.
Loot at that basic bitch bun walking outta Starbucks right now with her Pumpkin Spice Latte. I bet she's tweeting about it right now.