The term describes people from the north aka YANKS, YANKEES, or GREASE-BALLS, rapidly populatiing the south while having very unpleasant body odor and smell. (mainly fishy or just bad smelling)
In recent years, people have seen the effects of YANK STANK FEVER in the south ex; colleges and college towns.
The party last night would have been much better, but YANK STANK FEVER caused everyone to leave cause of their yank like ways and very bad smell.
A stanky roommate, often remaining in his room and hogging the internet, seldom leaving. Occasionally makes journeys out to the kitchen to be stanky and make the house stink and make unhealthy food, and then not wash his dishes. Surprisingly, will take 30 minute showers, but still the stank remains. Likes to go to sobeys.
"Hey, sorry man I can't, i have to drive my stanky roommate to sobeys."
"I was late because the stank took a long shower"