The act or process of boring a hole in a pipe, cask, or any similar object for the insertion of a spigot or faucet.In surgery, paracentesis, or the operation of giving vent to fluid which has collected in some space, as that of the pleura or peritoneum.n. The act of giving taps or slight and gentle blows; also, a series of taps.n. In foundry work, the operation of jarring or shaking the pattern in the loam by striking it gently to release it without disturbing the loam.