Usually pertains to poor service, and most often refers to lazy, inept, incompetent employees.
That's not to say, however, that it can't be used to describe your average garden variety ineptitude. Friends or accquaintences are good sources of humor/aggravation of this kind.
My package was bounced around in the FedEx truck for 3 days because the driver couldn't be bothered to look for the address or even, given an alternate, to deliver the package to a place she FREQUENTLY services. Customer service was no help, the terminal is run by a bunch of crazy half-drunken idiots, and the drivers are OBVIOUSLY dismally inept. I've never seen such grabassery.
This is a yiddish word for no swimming in the pool.
No grabassery while the pool is being cleaned.