A slang used mainly on Instant Messaging services, in which the q is replaced with the g to give the impression that the female is not at all serious about what she is saying and in fact thinks that it is cute.
It also causes emotional distress to males that see it for the first time. It gives the impression that your monitor is broken due to the fact that a q seems like an unfinished g.
Deposition of seminal fluid (or other bodily fluid) into an individual's oral cavity, allowing the material to crust, and subsequently reacquiring the solidified residue through intimate oral contact with said individual.