A mechanical device, containing a spring and a cylinder of fluid, that automatically closes an open door.

(now historical) A silver coin and money of account in use from the late-16ᵗʰ to the mid-19ᵗʰ centuries in the European Teutonic countries and their imperial trading networks.

(simile) Undoubtedly and unquestionably dead. / (simile) Very much out of date.

past participle of go down the tube

(idiomatic) To fail. / (idiomatic) To degenerate rapidly.

(poker slang) A poker hand that has four cards to a straight, where there are two different ranked cards that will complete the straight. E.g. 4-5-6-7, either a 3 or 8 could make a straight. It is used only when the player has not yet received all the cards she will receive for a particular hand.

(poker slang) A poker hand where two different ranks could complete the straight, but the new card would not be the highest or lowest card in the straight. E.g. 2-4-5-6-8, either a 3 or a 7 could complete the straight

(poker slang) A poker hand where two different ranks could complete the straight, but the new card would not be the highest or lowest card in the straight. Example: 2-4-5-6-8, where a 3 or 7 could complete the straight.

(law) An agreement between an employer and an employee in which the employee agrees, as a condition of employment, not to be a member of a labor union whilst employed.

Alternative spelling of horndog