Liver and onions
Remember that episode of Doug, when Doug was going to go to Patti Mayonnaise's house for dinner, and she told him they were having liver and onions? And then he ate liver and onions for every meal for the next two weeks, so that he wouldn't embarrass himself at her house, only to find out she was kidding the whole time? Yeah, there's a reason they never ended up together. Patti sucks.
That burping soda from Willy Wonka
First of all, no one likes people who burp whilst smoochin'. Secondly, this burping soda will make you levitate and fly away, so if your NYE party is on a rooftop, this could cause some serious issues with airplanes, birds, and your oxygen levels.
That gum from Willy Wonka
Gum is maybe encouraged before a make-out session, but not this gum. No one likes making out with an anthropomorphic blueberry. Just kidding -- I'm kind of into that idea.