An otherwise normal woman's shirt with a completely pointless hole in the middle, below the neckband, specifically designed to display her cleavage. Not to be confused with a regular low-cut shirt.
It's fine to wear short shorts and a tank top and say you aren't asking for attention, but if you say the same thing while wearing a shirt with a tit window you need to shut the fuck up.
(Noun) The medical condition whereby a drug user suffers from the illusion that his desktop windows are minimizing and maximizing of their own accord, for no apparent reason.
Window Pain
To Window Pain is to take LSD by using a eye dropper,
and placing drops into the eye. It is a fast and effective way to take acid inducing the desired effect almost emediatly.