A backstabber that gets a friend to introduce him to his cheating lover's boyfriend or husband to become best pals with another guy and cover his tracks as he cheats and backstabs.
Like the other definitions, a mild sweary word, but used as a get-out when you start to say "fuck" somewhere you can't. Often has a bit of a stutter at the start. Very similar to "sugar", in the sense Lucinda Green used it on television when a British horse missed a fence at the Olympic showjumping.
between his or her inner thighs with his or her hands. The goal of this action is to generate a loud noise. Fiddlesticking is a common practice among middle schoolers.
Joe: I am definitely better at fiddlesticking than you.
Ryan: No way bro, I can do it way faster and louder than you!