If, for exemple BWidow calls you a cmok, you've been bad,lol
on the other hand if she says something nice followed by a cmok;
she's blowing you a kiss. Of course it can be used in many other situations by others,some i'm sure, have no clue what it means. Maybe you came across one of them but than again, Aces High is not the United Nations so don't worry about it too much. !S!