MYJCB does not seem to be a known acronym. It could mean anything that you would like it to mean however such as "My Yellow Jacket Can Bounce" as strange as that may sound.
in Acronym Finder in Acronym Finder
The acronym may mean "by us for us" and may be a misstatement of the acronym FUBU.
That is not an acronym in any of the Acronym Dictionaries.
As an acronym:
The acronym AQR means Ain't Quite Right.
The acronym ART means Approaching Room Temperature.
Barf is an acronym for "Bile And Regurgitated Food". not slang, but an acronym.
The acronym AHF means Acute Hissy Fit.
The acronym ALS means Absolute Loss of Sanity.
The acronym AAA means Abdominal Aortic Aneurysm.
it mean you!! -------------------------------- IT is an acronym for Information Technology.
The acronym may mean "by us for us" and may be a misstatement of the acronym FUBU.