To give a speech from (or as if from) a soapbox.
A talk about one's pet topic (or the topic itself), especially when only tangentially relevant to an ongoing discussion.
A soapbox car.
A crate for packing soap.
Any physical or media platform which gives prominence to the person on it and the views they espouse.
To talk at length, to spiel.
To run.
To climb.
To lake, play, sport, take amusement.
A splinter; a strip of wood or metal.
A game.
A story; a spiel.