QTSD is an acronym for "Quit Thinking Start Drinking", it is usually the answer given by people who are at a loss when asked for meaningful advice on a serious or non-serious situation, in the hope that in the drunken stupor that follows the situation will be resolved somehow.
Guy 1: "What am I going to do (insert problem)"
Guy 2: "QTSD bitch!"
Guy 1: "Alright, I suppose one drink couldn't hurt"
5 hours later in another state/country
Guy 1: "Huh, so everything turned out ok, nice"
Guy 2: "Told you so"