Though copywriting is no easy skill to master, a few bad marketing folks — and their A.I. assistants — take bad ads to new lows. Just take a look at the billboards, tweets and online slots so convoluted, jumbled and nonsensical that they make your second-grade nephew look like Don Draper. 

From weirdly thirsty cartoons to the ever-important difference between "prosperous" and "phosphorous,"  here are 23 ads that have no idea what they're saying.