Green’s Dictionary of Slang

of a woman who is left behind while her husband devotes himself to an obsession, usu. sport or a hobby, e.g. golf-widow, cricket-widow etc.

1908		Westminster Gaz. 29 June 2/2: Has Mr. Balfour never heard of the Golf Widow? The husband who goes away for a weekend to play golf may improve his health, but conceivably the wife [...] may feel it rather dull and lonely .
1977		C. McFadden Serial 103: I’ve had it with the bicycle widow bit.