Green’s Dictionary of Slang

fogging adj.

a euph. for fucking adj.

1945		J. Maclaren-Ross Swag, the Spy and the Soldier in Lehmann Penguin New Writing No. 26 43: The fogging jemmy. Couldn’t think where I’d left the fogger at first.
1951		(con. 1941) E. Lambert Twenty Thousand Thieves 176: Let ’em touch our beer and there’ll be a blue in this fogging camp that’ll go down in history.
1954		(con. 1940s) E. Lambert Veterans 108: That got us sweet foggin’ nowhere.
1959		(con. 1940s) E. Lambert Glory Thrown In (1961) 17: ‘I’ll foggin’ do you,’ he promised Doc.