The act of showing too much interest in another person making you appear desperate and less desirable to them. The term "Quick Sanding" is referring to if you were standing in quick-sand trying to get out- the harder you try the quicker you will sink.
Her: "I tried calling him, texting him, even went to dinner with his mom. Then I tried to add him on Facebook. I still haven't got any response. I know....I will try texting him again!"
Person listening to her: "You are Quick Sanding so bad right now- Please just stop!"
(verb) The submission of clandestine and sensitive information that was originally intended to remain as such; ratting; snitching; narcing; "telling on" someone or some people.
If ever Betsy gets put in the interrogation room that hog bitch will start singing on the whole crew just to save her own ass. Damn is that bitch ever a cutthroat.