Dead stick landing - VERY quiet.

Stall means two things - either you're about to have a dead-stick landing (see above) or your wing just stopped flying and the plane's going to need some input.

Expo - a very nice way to tame a twitchy airplane electronically (control surface movement is reduced at small stick movements) or a place where you spend LOTS of money to get a radio with 'expo' (exponential)

Spin - plane's wing is stalled and it rotates quickly. Go find out what an inverted spin is. And for what it's worth, an Ugly Stik on floats doing an inverted spin looks as stupid as you'll ever see a plane look.