A person who gets out of an elevator on the wrong floor, realises their mistake, then tries to get back in before the doors close.
Dex, failing to concentrate, got out on the wrong floor. He then tried to scamble back into the lift - too late. What a fuckin failevator.
1. An elevator that fails, either by incorrect markings and symbols, or by being to damn slow.
We took a long ass ride in the failevator.