Grom
Origin
Shortened from grommet
Full definition of grom
Noun
grom
(plural groms)- (surfing, snowboarding, skimboarding, slang) A young surfer, wakeskater, wakeboarder, snowboarder, skimboarder, skateboarder, or kiteboarder.They were having this contest for grommets. The waves were micro. Even the groms were disgusted.