a sex act where after you cum in the chicks mouth, you shave your pubes into her mouth and force her to swallow. she will choke it back up like a hair ball.
its from havana because cubans are hairier and make for better hairballs
"Dude, i gave her a havana hairball and when she choked it up it hit me in the chest!"
She is an amazing girl you will never find someone like her. She is a great friend and a very loyal and trustworthyperson. She will also be there for you when you need her and be their to listen to what you have to say.