What Does UMBJ Mean?UMBJ means "You Must Be Joking."
Image for UMBJ
When I write UMBJ, I mean this:
"You Must Be Joking"
Summary of Key Points"You Must Be Joking" is the most common definition for UMBJ on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
|Definition:||You Must Be Joking|
2: Quite easy to guess
Adults and Teenagers
Example of UMBJ Used in a Text
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