Quote Originally Posted by t_niehoff View Post
Lop sao translates to "grabbing hand" -- any time you grab your opponent, you are performing a lop sao. The drill 'lop sao' uses a grabbing hand but that isn't the only way to use a grabbing hand. If, for example, I grab your lapel and pull you, that is a lop sao. All the grab does is provide an attachment (solid connection). Lop sao is an action, not a technique.
Lop sao is taught as a grab on the opponent's arm with the hand pronated into an external rotation. This is the lap sao I am talking about.

I don't think there is anything taught in WC about grabbing clothing, but please point me to the techniques in the system that do that.