When a girl goes down on another girl after they get really high so their eyes are bloodshot.
I saw Alice totally black swanning Julia last night at the party, it was so awesome.
by atlien135 December 21, 2010
2 more definitions
Getting carried away with your inner sexuality and getting lost in the moment
She took too much MDMA that she was black swanning all over the place
by smass February 01, 2011
The act of committing lesbian sex.
These two girls kissed at a party last night. Next time I turned around they were totally Black Swanning!
by luckyc777 June 26, 2011