An asshole. Brown like the chocolate from a Kit Kat, therefore named after said confectionary snack. Dependant on your location, common variants include: the Mars Bar Throughway, Bounty Bridge or Hershey's Highway.
"That girl has a rich aroma coming from her Kit Kat Junction"
"That's cos she doesn't believe in toilet paper"
"That's cos she doesn't believe in toilet paper"
by jizzmong hunter August 22, 2009
Get the Kit Kat Junctionmug.