Definition of "soppy"

Yarmouth […] looked rather spongy and soppy, I thought, as I carried my eye over the great dull waste that lay across the river; and I could not help wondering, if the world were really as round as my geography book said, how any part of it came to be so flat.

1849 May – 1850 November, Charles Dickens, The Personal History of David Copperfield, London: Bradbury & Evans, […], published 1850

'Goodness me!' said I to myself, 'whatever will become of sister's white satin shoes, if she has to walk about on soppy grass after such rain as this?'

1865, Elizabeth Cleghorn Gaskell, Wives and Daughters, Chapter I

" […] It's unfortunate, if I happen to look like what pleased some soppy old Greek sculptor, but I assure you that if it weren't for my face I'd be a quiet nun in the convent without"—then she broke into a run and her raised voice floated back to him as he followed—"my precious babies, which I must go back and see."

1920, F. Scott Fitzgerald, chapter 4, in This Side of Paradise, volume 1