(adj.) to look at someone in a suspiciously, sexually curious manner; paranoid.
(v.) to black swan one's self is to masturbate with your mother in the room; to fanatically fantasize sexually and paranoia based about someone of the same sex; to cup a women's vagina.
n.) someone or something that is paranoid, evil, dark, weird, mental disorder, and/or erotic; a woman who has lesbian tendencies; one who looks like they'll stab you or themselves with a mirror shard and put your remains in the bathroom
(v.) "He totally black swanned my vag last night."
(n.) "Did you see that picture of Kristen Stewart? She totally looks like a black swan."
To meet a naive individual then later have relations with them after heavily being under the influence, hearing of their disbelief they would do such a thing the next day.