When you try to forcefully penetrate the anus of another but are unsuccessful due to the victim clinching their buttocks together thus creating the "Bulin Wall."
"Dude I tried to put it in Susan's buttlast night but she Nikolai Khabibulined me!"
1. A term referring to a particularly homosexual person, used in the effort to reclaim offensive terms. Works best if target of term is actually cocksucker, ass-pirate, or both.