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A couple days after late night host George Lopez made a crack about Kirstie Alley's weight, the Dancing with the Stars diva fired back.

The feud began when the comic ribbed Alley's first dance with partner Maksim Chmerkovskiy during Tuesday's Lopez Tonight. "She did a nice job," he joked. "Her little hooves tapping away."

He went on, "Before the show, she went to the market and then she had some roast beef and this is her going all the way home." Lopez then played the nursery rhyme, "This Little Piggy Goes to Market" and showed a clip of a pig squealing "wheeeeeeee."

Alley's Twitter retort on Thursday: "lol...a drunk pig..hehe" she said about Lopez, later adding, "Don't worry about George's comments....just remember what happens to the big bad, drunk wolf....he falls in a boiling pot of vodka. Piggy laughs."

Responding to the backlash, Lopez now regrets the slam. "I misjudged the joke," he tweeted on Thursday. "No malice was intended and I apologize to Kirstie." But the actress isn't buying it. "I don't need or want ur apology," Alley tweeted on Friday morning. "I want your kidney dude..on behalf of ur X and all the women uv insulted...give it back."