By Kevin Liptak, CNN White House Producer

Philadelphia (CNN) Vice President Joe Biden rejected Donald Trump’s TV catch-phrase — “you’re fired!” — with a line of his own during a furious tirade against the billionaire Republican nominee Wednesday.

“His lack of empathy and compassion can be summed up in a phrase I suspect he’s most proud of having made famous, ‘you’re fired,'” Biden said in a speech that repeatedly brought delegates at the Democratic National Convention out of their seats.

“How can there be pleasure in saying ‘you’re fired?’ He’s trying to tell us he cares about the middle class? Give me a break!” Biden explained before offering his own well-used tagline: “That’s a bunch of malarkey!”

“This guy doesn’t have a clue about the Middle Class. Not a clue. He has no clue about what makes America Great. Actually he has no clue. Period,” Biden said, inciting chants of “Not a Clue! Not a Clue!”

Biden’s speech is likely to be the final major political address of his career, and he used it to also give a strong endorsement of Hillary Clinton.

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