Oh, there were sufficient metaphors for those who like a good postmortem wallow.
From the sfgate.com
Although you're sat high, it doesn't wallow, giving you the best of both worlds.
From the cars.uk.msn.com
Wallow in your poverty and thank your Western Gods for their generous donations.
From the guardian.co.uk
My mom would take me to the decorators'building downtown, and we'd wallow in it.
From the newsobserver.com
They are just like quicksand, seemingly bottomless, and the pigs wallow in them.
From the independent.co.uk
Tired kids will muster the energy to wallow on the floor, kicking and screaming.
From the charlotteobserver.com
The film then proceeding to wallow in images of his agony until he died in 1964.
From the morningstaronline.co.uk
Christmas gives everybody the justification to wallow in the glory of Christmas.
From the washingtonpost.com
The children and ancestors wallow in sorrow because death haunts more than ever.
From the time.com
More examples
A puddle where animals go to wallow
Devote oneself entirely to something; indulge in to an immoderate degree, usually with pleasure; "Wallow in luxury"; "wallow in your sorrows"
An indolent or clumsy rolling about; "a good wallow in the water"
Roll around, "pigs were wallowing in the mud"
Billow: rise up as if in waves; "smoke billowed up into the sky"
Be ecstatic with joy
Delight greatly in; "wallow in your success!"
An instance of wallowing; A pool of water or mud in which animals wallow; A kind of rolling walk; To roll one's self about, as in mire; to tumble and roll about; to move lazily or heavily in any medium; to flounder; as, swine wallow in the mire; To immerse oneself in, to occupy oneself with, ...
To lie in the trough of a sea and roll heavily; to roll under the sea.