1. A young troublemaker between the ages of 12 and 19 with long scruffy hair in his/her face, typically wears any type of skater sneaker along with a hoodie sweatshirt, and constantly gets in trouble for participating in brainless activities or causing disturbances (i.e. pulling plants out of the ground and throwing them at moving cars).
2. a young troublemaker between the ages of 12 and 19 that travels in peer groups of 6-10; can be seen riding outside on bikes and skateboards while screaming "you are a kitty smoocher" at passers-by, or at hang-out places like malls, movie theaters or the local A&W.
This term originated in RI, after definition #2 actually started happening to people in the area.
Jay: I was outside yesterday trying to fix my car, and a bunch of kids with scruffy hair on bikes and skateboards rode by screaming unintelligible words, what is that all about?
Me: Oh, it's just the neighborhood kitty-smoochers at it again, just ignore them.