A highly contagious condition that seemingly settles itself upon slack-arse waitress' causing them severe pain when the hoovering is mentioned or when more than three drinks need taking out.

This particular ailment has left the medical world at a loss but i have discovered a cure! As P.T.B.S appears to be caused by general slackness in a working environment i would suggest a dose of 'servalone' to deal with the nagging affliction.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.