Pearl Slaghoople is a fictional character on the animated TV show The Flintstones. She is the mother of Wilma Flintstone, who is married to Fred Flintstone. She is also the main antagonist in the series.

In the original series, she portrays Fred's stereotypically antagonistic mother-in-law, acting as a nagging irritant. Her appearance was similar to Wilma's, although Pearl was noticeably larger-figured, similar in build to the men of Bedrock rather than the more shapely Wilma and Betty. In the original series, she has red hair like her daughter's; in later specials and films, it's transitioned to gray. In the original series she was voiced by Verna Felton, who at the time was known for doing voiceovers for Disney animated films.

Pearl also appeared in the mid-80s spinoff series "The Flintstone Kids", which portrays her husband Ricky for the first time. Ricky also appears in the live-action 2000 film "Viva Rock Vegas". Presumably, Ricky died by the time Wilma reached adulthood, as Pearl is stated to be a widow in the original series.

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