Originally Posted by Der Ami
Some (many?) of the pre–Great War guns had "gas dickte mutter bolzens" (sp) installed later

Welllllllllll... I did forego opining on your interesting recollection of the term, when I smiled about it at first sight. But since your sown dragon teeth now seem to spawn in Raimey's (hopefully innocent) mind, allow me to ever so tactfully explain that

a) you might have heard "gasdichte Bolzenmuttern" and
b) the interesting orthographic rendering of thine mostly corresponds to a "farting phat MILF tart", such as to invoke Robert Crumb's drawings.

That might appeal to the imaginative fecundity of some readers' minds, but I am not sure inhowfar you might have intended that...
🙃🤪

Regards, Carcano