Guacamole feet

Used to describe someone who is sad or depressed. Often a downer or party-pooper.

Tim, you just shot the birthday girl. Why’d u do that?
I don’t wanna talk about it. I have guacamole feet.

Milk Shoe

When an ugly guy that isn't very funny, nice, or interesting dates a much more attractive girl with a better personality than him.

Joe DiMaggio and Marilyn Monroe, that relationship was the greatest milk shoe of all time