The Directorate of Miscellaneous Weapon Development was a temporary wartime body which developed in 1941 from the Inspectorate of Anti-Aircraft Weapons and Devices, set up in 1940 (an office of Admiral James Somerville)  which was corrupted to "Instigator of Anti-Aircraft Wheezes and Dodges" to advance radar and other devices for anti-aircraft and other purposes.
The Directorate of Miscellaneous Weapon Development was a temporary wartime organization established in 1941 from the Inspectorate of Anti-Aircraft Weapons and Devices, which was later humorously renamed to "Instigator of Anti-Aircraft Wheezes and Dodges" to accelerate research on radar and other technologies for anti-aircraft and other applications.