And how does the author know what the inside of a shoe tastes like?
I know what dirt, grass, various weeds, and even dog poop taste like because I did a lot of weed cutting with powerful string trimmers in high school. The "Weed Eater" brand name is more literal than I like to think about.
Not things I'd choose to taste, or that I'd want to compare with something I willingly put into my mouth.
Ask Philadephia Eagle fans: https://nypost.com/2018/02/05/eagles-fan-thinks-eating-horse...
They're very popular in Australia.