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A derogatory word used for a person (generally a fuckin' faggot pussyshit) with badly gelled, shortish, curly hair that makes the onlooker question whether or not they may have seaweed weaved into their hair.
"That dude over by those lunch tables is a seaweed head. You can't miss him."

"That dude sitting in my favorite lunch seat has seaweed hair."
by Thyne Eggard Foresythe April 29, 2010
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