when you only have regular cheerios but you want honey nut cheerios so you take some honey and squeeze it until it makes a small heaping dollup. then you take a second cheerio and you mash it on top and squeeze the cheerios together.
A Hindenburg is not a specific sex move, but rather any sexual act which, when performed, is so deviant it prompts one's girlfriend to tell her friends about it, to which they reply "Oh! the humanity!"