n. A small vesicle of water or other fluid inflated with air or other gas, and floating on the surface of the fluid.n. A small globule of air or other gas in or rising through a liquid.n. The vesicle of air in the glass spirit-tube of a mechanics' level.n. One of the small hollow beads of glass formerly used for testing the strength of spirits by the rate at which they rise after being plunged in them. See bead, 7.n. Anything that wants firmness, substance, or permanence; that which is more specious than real; a vain project; a false show; a delusion; a trifle.n. An inflated speculation; a delusive commercial project, especially one which is put forward as insuring extraordinary profits; hence, a financial imposition or fraud; a cheating trick: as, the South Sea bubble. See below.n. . A person deceived by an empty project; a dupe.n. In New England, hash or minced meat.To rise in bubbles, as liquors when boiling or agitated; send up bubbles.To run with a gurgling noise; gurgle: as, “bubbling fountains,”To utter a bubbling or gurgling cry.To cause to bubble.To cheat; deceive or impose on; hoodwink; bamboozle.To shed tears in a sniveling, blubbering, childish way.n. Snot.