As seen in illustrations or cartoons: Wavy, vertical lines rising above a person, place or thing. Denotes a foul odor.
"You didn't put enough stink lines on your picture of the teacher."
also related to shit lines
1) a person's hair is soo crap and shit and it starts to stink. Some might call it tramp hair
it may be used in a combo of words
Dude look at that tramp, he has stink shit tramp lines