Several words tethered together loosely to form a phrase, coined by the very
definition writing creature of whom is writing right now, Sorbet/Sobek/whateverthehjonk.
The individual meanings are as follows:
“Bunk up”, similar to fuck up, but slightly lighter
“Steez”, either something to do with personal style, or a
vibe you got goin’ from something.
Collectively these words of which coalesce into a phrase form the aforementioned, which in whole means to throw off a
vibe/resonating frequency, or to otherwise “cramp on one’s style”.