Adjective: Very rough, either literally, as in an unshaven gentleman's chin or figuratively as in uncivilised or things or behaviour.
"The people who moved in next door have parked their tarmac wagon across our drive again and stolen all the apples off our tree."
"Good gracious, they're as rough as a badger's arse."
Person 1: How are you feeling? I heard you were sick.
Person 2: I'm as healthy as a badger!
Person 1: That's not a saying you fuckin idiot.
Person 2: *goes on urban dictionary to write a definition*
When someone is terrible at something you call them Skunk Like a Badger, as they stink like a skunk and look like a badger (go outside you wont).
Samantha: Playing Fortnite with Dave
Dave: fucking annihilates Samantha.
Dave: "You're bad, you're free, literally and figuratively dogwater, straight up Skunk Like a Badger, any askers?"