Skip to main content

Home
Add a Definition
UrbanDictionary.store
Blog
Help

User Settings

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Advertise Report a Bug System Status Privacy Policy Terms of Service DMCA Accessibility Data Request Information Collection Notice reCAPTCHA Privacy reCAPTCHA Terms Do Not Sell My Personal Information © 1999-2026 Urban Dictionary ®

Definitions by BigSib

SIB

Share definition Flag

stupid idiot boy

Lucas you’re such a sib

SIB by BigSib May 20, 2025

Get merch