Descending from samurais, people with the surname Hirata are none to be messed with. However, they do possess hearts of gold despite their amazing ability to destroy.
by Jane Hansen July 30, 2005
To expose your belly button regardless of what you're wearing (collared shirt, wetsuit, one piece swimming outfit, chicken costume) in a seemingly casual way. Much debate surrounds the point on whether this is done intentionally or not as when people make a comment, a surprised look usually dawns upon the perp's face.
I was almost killed by that ninja but luckily he did a Hirata which allowed me to spot him through the shadows.
by Cristescu January 25, 2009