Mimi is a chipmunk featured in the 2004 comic Family Portrait. She is drawn by Clarissa, who depicts her being leapt upon by Rippyfangs.
In the comic Bedbugs, which also came out in 2004, Clarissa mentions that John had told her previous that he doesn't like chipmunks who lie.
Her father John refers to Clarissa as "chipmunk" at the breakfast table.
Clarissa's self-portrait of herself eating breakfast bears a resemblance to Mimi, as they both have exaggerated smiles. These were drawn under the instructions of Clarissa's teacher.
Clarissa also makes a verbal reference to her teacher Miss Lincoln regarding how the name sounds, but Lincoln appears oblivious to it.