bog hole

a land-surface depression occupied by waterlogged soil and spongy vegetative material that cannot bear the weight of large animals.

Origin of bog hole

First recorded in 1780–90

He would put his foot in a bog-hole and stumble so sharply that I would all but lose my seat.

Sir Quixote of the Moors |John Buchan
The path led through it, and if he left the path he would without doubt perish in a bog-hole.

The Path of the King |John Buchan
Just to break the monotony the Preacher stepped into a bog-hole and disappeared, temporarily, from view.

Days in the Open |Lathan A. Crandall
But it just occurred to me that you could also try to trace the escaping lovers, and get stuck in a bog-hole.

The Moving Picture Girls Under the Palms |Laura Lee Hope

I was that mad that I might have thrown you into the bog-hole if the craving had not passed from me.

The Lake |George Moore