UK, 1963—‘Mr. Plod’, also ‘P.C. Plod’, ‘Plod’: a humorous or mildly derogatory appellation for a policeman or for the police—alludes to ‘Mr. Plod’, the name of the policeman in stories by the English author of children’s fiction Enid Blyton
USA, 1957—the rhythm method of birth control, as permitted by the Roman Catholic Church—with allusion to the unpredictable efficacy of this contraceptive method: from ‘Vatican’, denoting the authority of the Roman Catholic Church, and ‘Russian roulette’
USA, 1917—originally and chiefly military slang—an inspection of the penis for venereal disease or other infection—the image is of the penis as an additional, but shorter, limb
‘serious trouble’—USA, 1866—from the image of taking off one’s shirt before getting into a fight, and from ‘hell’ in the sense of ‘a severe reprimand’, as in ‘to give someone hell’
‘flabbergasted’, ‘astounded’—1925, Lincolnshire and Yorkshire, north-eastern England—in reference to the shock effect of being struck in the mouth, from the noun ‘gob’, denoting ‘the mouth’, and the adjective ‘smacked’, meaning ‘struck’
used of a person who is frozen with fright or surprise, or is trying to flee, as a result of suddenly becoming the focus of attention—alludes to the habit of deer and rabbits of stopping still when dazzled by the headlights of a motor vehicle, or of running away within the headlight beam
‘femiphobia’ (USA) 1907—‘feminophobia’ (UK) 1914—an irrational fear or dislike of women—from Latin ‘fēmina’ (woman) and combining form ‘-phobia’—probably each coined on various occasions by different persons, independently from each other