Fish Bump

A two-person celebratory act, similar to a chest bump, in which both parties rapidly bring their vaginas together.

"Hey, nice shot! Fish Bump me!"

chicken bump

A tradition in rural America, and the unisex term for a fish bump. (which refers specifically to vagina-equipped humans)

It's like a chest bump but at crotch level. It is not typically a sexually charged or intimate event.
Its romantic counterpart is referred to as a chicken kiss.

After throwing down a baller alley-oop, I chicken bumped my youth pastor. He almost got arrested but I told the cops that it wasn't a weird sex thing.

Chicken kiss

or Cloacal Kiss, refers to the way birds reproduce. The male and female press their cloacae ( the plural form of cloaca - the opening that a bird uses for waste and reproduction) together to fertilize the female bird's ova.

Also a slang term for vagina-to-vagina or anus-to-anus intercourse (see Fish Bump)

Aww, sick Chicken Kiss! Looks like Bessy's finally gonna lay.