<p><strong>Noun</strong></p><ul><li>Also called true bug, hemipteran.</li><li>a hemipterous insect.</li><li>(loosely) any insect or insectlike invertebrate.</li><li>Informal: any microorganism, especially a virus.</li><li>Informal: a defect or imperfection, as in a mechanical device, computer program, or plan; glitch.</li><li>Informal: a person who has a great enthusiasm for something; fan or hobbyist.</li><li>a craze or obsession.</li><li>Informal: a hidden microphone or other electronic eavesdropping device.</li><li>any of various small mechanical or electrical gadgets, as one to influence a gambling device, give warning of an intruder, or indicate location.</li><li>a mark, as an asterisk, that indicates a particular item, level, etc.</li><li>Horse Racing: the five-pound weight allowance that can be claimed by an apprentice jockey.</li><li>a telegraph key that automatically transmits a series of dots when moved to one side and one dash when moved to the other.</li><li>Poker Slang: a joker that can be used only as an ace or as a wild card to fill a straight or a flush.</li><li>Printing: a label printed on certain matter to indicate that it was produced by a union shop.</li><li>any of various fishing plugs resembling an insect.</li><li>Chiefly British: a bedbug.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>Informal: bugged, bugging.</li><li>to install a secret listening device in (a room, building, etc.) or on (a telephone or other device).</li><li>to bother; annoy; pester.</li></ul><p><strong>Verb Phrase (Slang)</strong></p><ul><li>to leave or depart, especially rapidly.</li><li>to flee in panic; show panic or alarm.</li></ul><p><strong>End of Response</strong></p>