Meaning of BU
What Does BU Mean? (Using BU Online)BU means "Backup".
Summary of Key Points
Definition for BUBU means "Backup". This is the most common definition for BU on Snapchat, WhatsApp, Facebook, and Twitter. Here is some more information about BU:
Adults and Teenagers
A Text with BU
Using BU on a Cell Phone (SMS Texts, Whatsapp, and Yubl)