By Corpusty
Glos,
United Kingdom 
A small hole, about 2 inches wide, appeared in our lawn.There appeared to be something very slimy, jelly-like inside, frog-spawn like in appearance. When we mowed the lawn, the stuff seemed to move! Very weird! Any ideas?
11 Jun, 2018
Answers
You get something like that after a stinkhorn fungus has gone over. You would, however, have noticed the fungus there unless you have been away for the past week!
11 Jun, 2018
Eeeeeew! Sounds horrid. Yes, i am familiar with the stinkhorn slime...and the stink! I wonder if it was that? It sounds weird!
11 Jun, 2018
Thankyou for all your helpful comments.
12 Jun, 2018
Previous question
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Dunno about the hole, but otherwise it sounds like one of the slime moulds. These appear if the weather's been wet, and disappear again when it dries, but a photo would be useful.
11 Jun, 2018