Mirror
From xat wiki
(MIRROR) - Mirror smilies
This power allows you to mirror (flip sides, so the right is on the left, and left is on the right) all smilies with brackets by placing #m right before the closing bracket. e.g (d#m) (roll#m).
This power can be used in conjunction with invert, by using #im or #mi. e.g (roll#mi) (d#im).
Note: You can use mirrored smilies in your name, messages, or as your main avatar picture, but not as an addition effect to an avatar. For instance, yourpic.png#blood#m,wouldn't work.