Simple past tense and past participle of housetrain.(verb)
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Use "housetrained" in a sentence
"He even manages to interject a bit of his own un-housetrained tune, "Race Riot on the Dancefloor" (sample lyric: "Shake it till my dick turn racist") without anyone gasping too loudly."
"When I first brought home Maggie from the pound, I was a modern dancer who lived in a fifth floor walk-up studio apartment, and she was a five-month old dog that wasn't housetrained (not even close)."
"Who spilled his drink in his lap and yelled, 'I'm not housetrained!'"