To 'brown eye'
Verb.
To 'brown eye' someone is to moon them, through the 'act of baring
one's anus to a party as a sign of defiance', with the added insult of a brown poo smear surrounding the anus. The term derives its meaning from the acts' resemblance to the sectors of the eye - the
white cornea as the
bottom, the poo smear as the colour of the iris and the black
hole of the anus as the pupil.
Not to be confused with actual brown coloured eyes, which are usually devoid of fecal matter.
For cases where eyes are not devoid of fecal matter, see pink eye.