Wiktionary
n. A salad dish made from cooked, peeled, chilled prawns with a Marie Rose sauce, served on lettuce with lemon.
Wikipedia
Prawn cocktail, also known as shrimp cocktail, is a seafood dish consisting of shelled, cooked, prawns in a cocktail sauce, served in a glass. It was the most popular hors d'œuvre in Great Britain from the 1960s to the late 1980s, and was likewise ubiquitous in the United States around this time. According to the English food writer Nigel Slater, the prawn cocktail "has spent most of (its life) see-sawing from the height of fashion to the laughably passé" and is now often served with a degree of irony.
Usage examples of "prawn cocktail".
Below were eyebrows of vaporous grey, scallop-coloured eyes, skin the pink of a prawn cocktail.
Sure enough, before any of them got even so much as a sniff of a prawn cocktail, JWB, Jumbo Wig Bastard, was demanding they all stand to attention and join in 'the Sintek power-chant', accompanied by a beatbox routed through the dining room's PA system.
I ordered a prawn cocktail, waited thirty minutes for it and then discovered that several of the prawns were still frozen.
The prawn cocktail which he had not ordered but which had been thrust on him by the head waiter appeared to have been marinated in tabasco, but it was as nothing to the Poule au Pot Edward the Fourth.
A masterpiece of Soviet propaganda in the afternoon, then maybe on to Luigi's for prawn cocktail, half a barbecue chicken and two pints of Lambrusco bianco.