'Widget' seems to get the point across as well.
Of course, if you really wanna show people how ignorant they are, and how you know just simply everything, 'discombobulator' is the go to term.
They'll never see it coming
Anybody got some spare flight line and a box of grid squares I can borrow?
michaelbikin- Yes. Your throttle should return to idle when released. Make sure that it is mounted and adjusted properly, and if that doesn't fix your problem, Slogger gave you some other good ideas. I prefer graphite over oil so that gunk doesn't build up, but it really hasn't been much of an issue with the ones' I've used oil on.