UK, 1823 as ‘calf’s head is best hot’, defined by John Badcock as “the apology for one of those who made no bones of dining with his topper on” in Slang. A Dictionary of the Turf, the Ring, the Chase, the Pit, of Bon-ton, and the Varieties of Life
1951—with pun on the noun ‘camp’ (i.e.: encampment): extremely camp (i.e.: ostentatiously and extravagantly effeminate; deliberately exaggerated and theatrical in style)
a word in confidence—UK, 1927—‘shell-like’ elliptical for ‘shell-like ear’, which was originally a poetical term associating the shape of the external ear with the graceful convolutions of a small pink seashell
theatre—a typical entrance or exit line given to a young man in a superficial drawing-room comedy—USA 1934—but 1908 in a short story evoking the pastimes of members of the leisured class during a stay at a country house
dirty fingernails—1906—British and Irish English—but the comparison between the dirt edging the fingernails and the black border edging mourning paper dates back to the 19th century
UK, 1898—Australia, 1913—used when, while addressing someone, the speaker is interrupted by someone else—in particular when the person who interrupts is a subordinate of the person whom the speaker addresses
a word or piece of text in which the design and layout of the letters creates a visual image related to the meaning of the words themselves—from French ‘calligramme’, coined in 1918 by the French poet Guillaume Apollinaire—from ‘calligraphie’ and ‘idéogramme’
refers to “All right, have it your own way—you heard a seal bark”, the caption to a drawing by James Thurber, originally published in The New Yorker of 30th January 1932
USA, 1909—a derogatory description of a specific place or occupation, typically used by somebody who is getting expelled from this specific place or occupation