Skip to main content

Dictionary Store Blog World Help Advertise Chat System Status

Do Not Sell My Personal Information Information Collection Notice reCAPTCHA Privacy Terms of Service reCAPTCHA Terms Privacy Policy Accessibility Report a Bug Data Request DMCA

© 1999–2026 Urban Dictionary ®

Words of the Day BrowseAdd a Definition User Settings

Definitions by Black_out

Bo

Share definition Flag

noun or verb

accr. for Blacked Out

David - "What happened last night?"
Chris - "Dude, you were so bo!"

Bo by Black_out December 16, 2008

Get merch