Example usage:
"Jim, that shipment was supposed to go out thirty minutes ago, quit fucking the dog!"
or
"Hey what are you up to right now?"
"Oh, nothing, just fucking the dog."
or
"Isabelle hardly gets anything done, she's a real dog fucker."
or
"My manager at work just fucks the dog all day, I have never seen him do anything useful."
as a tank, I say "fucked the dog", but I use it the same way I use "shit the bed". but "screwed the pooch" is way more common.
I just used "fucked the dog" yesterday when describing the situation in texas. i.e. "man they really fucked the dog on this."
Shit the bed is a bit more common than screwed the pooch in my experience