Two rectangular, dark circumferences across the head of a woman. Usually painted on and slowly fade over a 6 week period. HD stands for 'high definition', thus allowing the improper fakeness of the eyebrow to really stand out.
HD Brows were born in Essex and have quickly spread all over the UK.
Severely schooled. Past tense of "pwn". (I disagree with the pronunciation, it should be "own't". The P (being next to the O on a keyboard) is an intentional typo. It's not supposed to be said aloud, thats just incredibly stupid.