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2.
an immovable coiffure that defies the forces of nature due to an abundance of hairspray
jimmy swaggart, sam donaldson, sara palin, and doris day have the hair helmet in common
by beachkat October 12, 2008
 
1.
When someone has a large amount of hair on there head and its natural shape is that of a Motorcycle Helmet.
Whoa Frank... nice Hair Helmet!
by SouCo Mapos September 12, 2007
 
3.
A person's hair, usually male that is extremely big. That covers over the ears, forehead and most of the neck. The hair could essentially protect the head from injury.
Did you see Ryan on his dirtbike?

Yeah his hair helmet is flapping in the wind!
by Trigun10343 July 27, 2009