A current thread is asking for the words for a wartime song "He's got the cutest little dinghy in the Navy." Assuming I am not simply warped, this puts it in the same not-very-ambiguous class as Cuckoo's Nest, Bonny Black hare and so forth. Another wartime song I have is sung by woman who claims "I've got the deepest shelter in town". There was also one I vaguely recall about someone with a massive cucumber, but I've only heard that on the radio.

Why were these songs especially popular during the war years, and how long after the war did they continue to be mainstream? ("The Deepest Shelter" was certainly released on a 78rpm, it was not just a barrack-room song)

It certainly makes a change from those White cliffs of Dover!