Exactly he's saying if you don't have the imagination to use language well and think about what you're saying then you should be consigned to a life of shoveling st.
I also dont use marmite, but I use marmelade, a desertspoon full, and a little soft brown sugar to aid the caramelisation process of the onions, i also add a little balsalmic vinegar. I also find that red currant jelly works fine if i run out of marmelade.