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1.
A flowering plant, henna is used as a dye, particularly in hair colouring, and temporary body art known as mehndi (also written as mehendi or mehandi). The dye is extracted from the dried leaf and petioles of the plant. Mehndi is the application of henna as a temporary form of skin decoration. It is usually drawn on the hands and feet, where the designs will last the longest.

The patterns of Mehndi are typically quite intricate, and predominantly applied to brides before wedding ceremonies. However, traditions in Bangladesh, Kashmir and Sudan sometimes expect bridegrooms to be painted as well.

Mehndi decorations became fashionable in the West in the late 1990s, where they are sometimes called "henna tattoos". This American marketing slang is inaccurate, since tattoos are defined as permanent surgical insertion of pigments underneath the skin.
"For my sisters wedding ceremony, everyone got to have their hands and feet decorated in henna."
by Suhaila May 01, 2006
 
2.
Beautiful, lovely, cares for others, really nice, down to earth. An amazing individual. Mendhi
Your so Henna.

Yur hennas really nice
by iilovebee April 19, 2010
 
3.
A hot, caring, genuine, stunning, loveable lady! A lady that puts others happiness before herself. She is every mans dream woman and she's the definition of a true woman. She loves to see others happy before herself . If you have a henna wife her up bro!
Man: my wife's name is henna

Other man: she must be perfect
by Truthbetold5551 April 07, 2014
 
4.
Kool, awesome, along those lines
'WOW that's so henna'
'OMG how henna'
by Buzz789 May 09, 2009
 
5.
a redish tint in your hair that looks hot!
that henna's come out nice in you !
by vagabondee March 16, 2005