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1.
A girl with a really pretty face but ugly body. The opposite of a butterface/brown bag special.
Julie? She's head-strong, if she took up anorexia she'd be pretty damn hot!
by SarahLEE April 27, 2006
 
2.
Headstrong refers to a man who has a facade of toughness but who is fragile as an egg and who is easily pushed to outbursts of emotion.
Man, why are you being such a Headstrong, I was just talking about George W. Bush
by Louis Rivas January 18, 2005
 
3.
Headstrong is a name given to ravers who can take large quantities of LSD without losing the plot.
"Only for the HeadStrong... you know the score ;)"
by Snow_E October 08, 2006