Commander Alwyn Thomas Lavender Covey-Crump (19 February 1907 – 19 May 1991) was a British officer of the Royal Navy.

The compilation, now continually updated, has led to the term Covey-Crump itself entering into Royal Navy slang.

[1] The 1957 Electoral Register finds Covey-Crump and his wife Joyce living at 19 Trenham Drive, Warlingham, Surrey.

[20][21] From 28 September 1936 he was deployed as secretary to Captain Victor Danckwerts of HMS Faulkner, leader of the 6th Destroyer Flotilla.

[34][35] On 22 January 1950, while Covey-Crump was serving in the Mediterranean under Vice Admiral Louis Mountbatten on HMS Liverpool, King Farouk visited the ship,[36] and was presented with a special matchbox when lighting his cigar.

Farouk was a collector and belonged to the British Matchbox Labels Society (BMLS); the gift was described as a "great rarity".

[37] Covey-Crump privately published, within the Royal Navy, his first-edition typescript of Alphabetical Glossary of Naval Terms and Abbreviations on 17 May 1955.

The National Archives website has an online transcription of it, commenting that it "provides a valuable resource for researchers looking for answers to many historical questions about the Royal Navy".

[38] The historical reenactment company HMS Richmond suggests that the collection of Jack-speak in this compilation is centred on the period around 1775.

[45] Surgeon Captain Rick Jolly, who as a surgeon commander with the Commando Logistic Regiment commanded the field hospital at Ajax Bay during the Falklands War produced his own dictionary of "Jackspeak" in aid of the South Atlantic Medal Association, in 2000.