A combination of lightning mcqueens catchphrase "kachow" from the disney/pixar movie cars and the word "pussy" referring to a womans reproductive organ. Basically we're talking about some top quality pussy here
Ketchup and Mustard mixed together. This used to be a popular dip for french fries and several other dishes until about the year 2005. Now Mayochup is being eaten on everything including french fries.
People used to be fans of Ketchustard before 2005, now everybody despises Ketchustard and loves Mayochupinstead