Ma might but Da won’t!

“Reconstituted tar!”
“Arse gravy!”
“Gearbox grease!”
“Ships’ bottom anti-fouling!”

Marmite, Marmite, my delight;
Frightfully black and sharp;
Laidback zinc, thickly salty,
Blackly-inky, sticky stink.

Da won’t but Ma – might…