windfucker.

If the term is a compound of wind + fucker, it may preserve an old sense of fuck (“to beat, strike”) which is also found in cognates (for example, Bohuslän Swedish fokka (“to fuck; thrust, push”)) but was otherwise lost from English, and it can be compared to the regional synonym fuckwind. (Wright's English Dialect Dictionary compares fuck in the latter word to Old Norse fjúka (“be driven (by the wind); fly”) instead, while Liberman says the Norse word "has no [other?] cognates anywhere in Germanic".) However, the synonym windsucker is almost as old, and was rendered in older texts as windſucker using a long s, so some scholars think windfucker is a misreading of windſucker; others think windſucker is a bowdlerization of windfucker. Compare the later term windhover and the Orkney term windcuffer. Modern attestations of the second, vulgar sense may be unrelated to the bird. For the construction of this second sense compare Serbo-Croatian jebivjetar (“shallow, insecure, ostentatious person”, literally “fuckwind”).