What does YMBJ stand for?

YMBJ stands for "You Must Be Joking"

How to abbreviate "You Must Be Joking"?

"You Must Be Joking" can be abbreviated as YMBJ

What is the meaning of YMBJ abbreviation?

The meaning of YMBJ abbreviation is "You Must Be Joking"

What does YMBJ mean?

YMBJ as abbreviation means "You Must Be Joking"