A cross between the standard englih contraction "can't"(can not) and non-standard english contraction "ain't" (am not). This combination of contraction forms a powerful word encompassing "can not", "am not", "is not", "are not", and "have not".
English Standard: "I cain't get the tractor to run"
Ebonic: "Nigga I can't.. I'm high as hell"
can of paint or the number 287. for the lazy folk.
"Shit Rusty, I's fergot my caint back in ther house!"
"I have caint days to retain my virginity--when that last day comes and I'm still loose as a coffee can, say goodbye to the dreamboat with the nice ass."