My first dog used to do that all the time, just rolling about on his back growling happily to himself.
Whats that all about, eh?
( FoldsFive, Wed 27 May 2009, 11:58, archived)

i do that sometimes

( manolith hooray for me, Wed 27 May 2009, 11:59, archived)

I've heard you.
I think it's distemper.
( FoldsFive, Wed 27 May 2009, 12:03, archived)

I dunno.
He particularly likes doing it after his bath, though. He does face dives into the grass.
( Esme Weatherwax I swear on my tash it's daycent hash, Wed 27 May 2009, 11:59, archived)