A tan line you get from goin to Mexico for the summer, but get forced to wear a surgical mask due to Swine flu. You then end up with a surgical mask tan line around your mouth.
Barney: Dude, check out that hottie. She's really tan!
*girl turns around exposing a giant white square tan line around her mouth*
Barney: Holy shit... Is that a swine line?
*pukes on friends shoes*
Josh: DUDE!?
*girl turns around exposing a giant white square tan line around her mouth*
Barney: Holy shit... Is that a swine line?
*pukes on friends shoes*
Josh: DUDE!?
by bitchface13 August 13, 2009