What does ICBU mean?

I can't believe you

Other definitions of ICBU:

All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of ICBU that should be included here, please let us know. Keep scrolling and fill out the form below!

How to use the term ICBU:

There are no example uses of ICBU at this time. We would greatly appreciate your contribution if you would like to submit your own!