Yeah- groms are the youngin's. Back in my day (wheeze, cough cough) the groms all (cough cough wheeze) would hang at (wheeze wheeze) the local shop and (cough) talk about (cough cough cough cough cough) being knarly.
Groms know the surfer code and etiquette, flaunt it a bit, hang in a tight pack, and are known to break into a group campfire/schoolbus/punk song in the water.
they also have sandy hair and pink noses.