When in doggy style position, one must push three fingers (like a crane) in to anal cavity and then proceed to lift partner in crane fashion by ass.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)

When you do some anime hand magic forming an anal crane (hands together, 8 fingers pointing up) and then sneak up on you classmate and shove it up his anus at high velocity causing him to take off and be craned.