BY THE WAY.
the other definition is WRONG!
This is the REAL definition:
An O-shaped mouth expression, fingers together, left hand adjacent to the face, used for when a spider is seen. Almost seems to be put-on, I mean who really poses that dramatically when they see a spider?
*Smiti happily types away to a friend on a facebook, a spider scuttles past on the desk she is working on*
....... *5 seconds later, turns webcam on, does the smiti pose*
Smiti: AHHH I JUST SAW A SPIDER!