Also a term of abuse used by Captain Haddock by VaccaD

Members of the infraclass Cirripedia, WHAT SESSILE CRUSTACEANS are the most famous subject of Haddock's cursing? (With over 1000 known species Haddock is probably correct that there are billions of them, and some are blue, but there's less information about how many are "bilious" or "blistering".)

Originally coined by William Smyth in 1919 to mean "one who believes in the rule of the people made effective through the agency of their servants, the scientists and engineers", WHAT TERM now chiefly means a member of a knowledge-based elite? (The term is sometimes used as a pejorative, so Haddock's not alone here.)

Although best known today as a parliamentary maneuver, WHAT TERM originally referred to private citizens who undertook officially unauthorized military expeditions in foreign countries, especially pro-slavery Americans in Latin America in the mid-19th century? The term comes from Dutch via Spanish, and shares an origin with the word "freebooter".

WHAT MATHEMATICAL OPERATION is the inverse of exponentiation -- that is to say, the exponent to which another fixed value, the base, must be raised to produce that number? (No, there's no conceivable reason for Haddock to use it to insult anyone.)

WHAT TERM, derived from a word meaning "big feet", was originally used to describe the Tehuelche people on account of their exceptional height and thick leather boots? It now refers to any resident of a multinational area south of the Reloncaví Estuary, including the cities of Comodoro Rivadavia and Punta Arenas.

WHAT TERM refers to two closely-related Indian Ocean fishes, both members of genus Latimeria? The scientific name honors Marjorie Courtenay-Latimer, a museum curator who identified a specimen caught off the African coast in 1928.

WHAT TERM meaning "people who live in a cave" has subsequently taken on many other meanings, including the species name of the common chimpanzee, a generic term for people with a primitive mindset, and underground-dwelling reptilian humanoids in Dungeons & Dragons that emit an incapacitatingly foul scent when angered or frightened?

WHAT TERM refers to several members of order Testudines, mostly from the Geoemydidae and Emydidae families, distinguished by mostly living in fresh or brackish water rather than in saltwater or on dry land? (It's not clear why Haddock would use this term as an insult, unless he has a grudge against a particular Big 10 school.)

WHAT TYPE OF PARTICLE ACCELERATOR, invented by Ernest O. Lawrence in 1932, accelerates charged particles outwards from the center along a spiral path? Although largely superseded by the synchrotron, some are still used today. (No, I have no idea what Haddock is thinking here.)

WHAT TERM refers to hard, compact coal with a degree of luster? It has higher carbon content, fewer impurities, and higher energy content than bituminous coal or lignite. (This may be a "legitimate" malapropism, as a false cognate might make someone think it describes a person rather than a chunk of coal.)

In its original religious sense, WHAT TERM describes figures as diverse as the Egyptian emperor Akhenaten, Protestant leader Ulrich Zwingli, and the Islamic State of Iraq and the Levant, but is most often associated with the Byzantine Empire in the 8th and 9th centuries? It's now much more often used to mean anyone who makes aggressive statements or actions against any well-established status quo.

From the Turkish for "damaged head", WHAT TERM referred to unpaid irregular soldiers of the Ottoman Empire? They were infamous for looting (because, hey, "unpaid"), and their name was sometimes used to describe any undisciplined plunderer. (Haddock seems to use the term in this figurative sense, and since the "Tintin" series is largely responsible for preserving the term, it's for the best that he gets it mostly right.)