torpedo

• self-propelled underwater missile launched from a submarine or boat; (zoology) fish that has electric organs and is able to give electrical shock from its organs and enlarged pectoral (lives in tropical or temperate seas), crampfish, electric ray, numbfish, electrical fish
attack with a torpedo; damage with a torpedo; undermine, sabotage, destroy, subvert; detonate an explosive device inside an oil well in order to facilitate the extraction of oil
a torpedo is a bomb shaped like a tube that travels underwater.
if a ship is torpedoed, it is hit, and usually sunk, by a torpedo.
to torpedo something such as a negotiating process means to do something to stop it from being successful; an informal use.