Blanki is a word that dates back to greek mythology whose original meaning is derived from "cold and wet". Its used predominately in a context to indicate severe intoxication and/ or (but not limited to) poor judgement, immoral behavior, temporary memory loss or feigned memory loss to constitute probable deniability of an embarrassing or distasteful event.
In a sentence:
"Man, I got so blankied the night before that i woke up cold and wet and dont know how it happened."