A type of critical thinking skill where you insert your head up your own anus and talk a bunch of shit and you never have to admit any wrong and can quote non facts and change reality to match your perception of whatever point you're trying to get across at that particular time. Even if it conflicts with something you said 5 minutes ago.
At the same time you've got your head up your anus talking shit, your bowels will be pushing it back the other way and create a vacuum in which sound cannot escape.
"You can't seriously be telling me that, the logic is not soundtight. When was the last time you had an orgasm?"
"Cooking is not baking, you can bake something without cooking it and visa versa. Try using sound tight logic"