The opposite of "sarcasm". Often used when countering a false charge of sarcasm.
Nah baby, it's not like that. When I said that your pink hat looked dope, it wasn't sarcasm at all. It was honestcasm! For reals though.
An old t-shirt used to clean up masturbated ejaculate. Kislers often go long periods of time without being washed.
A friend of mine accidentally wore his kisler to school yesterday. Sick!
To sell illegal drugs late at night.
You want to pick up now? At this time of night? Nah, dawg. I don't know anyone who's on the grind in this area.