Dog in the ass means when you go to sleep in a junkyard and wake up with a dog nestled in your colon.
Quite uncomfortable.
When Fred woke up in the junkyard he had a dog in the ass.
He had to coax it out with meaty bones and a dog biscuit.
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A gummy bear is one who hasn't wiped up after whacking it or getting some sweet bear booty.
Smokey was a very gummy bear after three hours of flogging the dolphin while watching internet porn.
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