Women and Car Parking

The joke compares women to parking spots, suggesting that desirable women are always in relationships ('taken') and then goes further to imply that some people will exploit a 'disabled' (less desirable) woman when no one is looking. It relies on a crass and offensive comparison between women and parking spaces, implying that some women are less desirable or more vulnerable and therefore open to being taken advantage of. This is considered highly insensitive and inappropriate.