See Also: huff-duff(dictionary)
huff(2)(dictionary)
huff(dictionary)
huff-cap(dictionary)
huff(1)(dictionary)
huff 1, verb(dictionary)
huff 2, noun(dictionary)
duff(6)(dictionary)
duff(medicine)
duff(1)(dictionary)

huff-duff (iou)



huff-duff noun. M20.
[from initial letters of high-frequency direction finder.]
Hist. (Equipment for) radio direction-finding (esp. in the war of 1939-45).