cloacal kiss
The method in which a male bird fertilizes the ovum of a female bird. The male and female press their cloacals (a prosterior opening which functions as the end of the reproductive, digestive, and urinary tracts) together for a few moments to transfer sperm to the female.
Mel: Whoa are those birds rubbing their butts together?
Nico: No they're just giving each other a cloacal kiss.
Nico: No they're just giving each other a cloacal kiss.
Cloacal Kiss
A sex move where two partners enter a "scissor" position and press their assholes together and one or both of them fart directly into the other's asshole.
"Your mom turned me on so much last night that I gave her a cloacal kiss."