A cross between a dork, a mallrat, a hippie, and a rocker. Gromits hang out at the mall or in parking lots. They are known to wear:
Dr. Suess hats
Marilyn Manson or Korn shirts
Wallet chains of hemp rope with beads in 'em
Gromits are almost always white. They listen to ICP and Staind. Gromits are by definition teenage boys in the most awkward phase of growth of their lives. But there are female gromits. They usually have acne.
Dude, shut up I remember when you were a trenchcoat wearing gromit at the mall.
It was to her eternal shame that she lost her virginity to a townie gromit one drunken night when she was fifteen.