Ida Mae Jensen

Ida Mae "Granny" Jense is the mother of Anna Pearl and the grandmother of Sherman and Ernie Sr. Granny Jensen, is one of the most well remembered among the family, for three things, an overactive libido despite the age, no sense of politeness or personal space and her ongoing feud with her son-in-law Cletus Klump. The latter of which is often started by Cletus saying a rude remark about her age, whenever he cannot stand to hear any more about her sex life. This often ends with Granny challenging Cletus to a fist fight stating "Come on Cletus," or even threatening to throw a knife at Cletus's butt. Out of all of the family, Granny is the most distant from Sherman, only sharing screen time whenever they have family dinners together. Spending most of it either arguing with Cletus or embarrassing Sherman. She may have been somewhat senile as well, as during Cletus's farting spree, she at one point asked who was calling her name, causing Cletus to crudely joke that he had been "calling" her by name via his farting.

In Nutty Professor II: The Klumps, Granny is shown to have a boyfriend named Isaac who is mute but has a high sex drive just like Granny. Despite this, she attempts to seduce Buddy Love, who she mistakenly believes is the stripper she called for during Denise Gaines's bachelorette party. In addition, despite her overactive libito or her lack of politeness, she also was shown to be genuinely disgusted along with the rest of the Klumps when the hamster proceeded to mate with Dean Richmond on live TV during Sherman's disastrous presentation of his anti-aging formula, showing that even she had her limits to what crude sexual aspect she was willing to tolerate.