This article contains spoilers. Read at your own risk.
Errr.. Speak up why dont'cha?
– Mrs. Wallabanger to Nikki
Mrs. Wallabanger is the Maxwell family's neighbor. She is also Oliver's and Max Crumbly's grandmother.
Mrs. Wallabanger was introduced in Tales From a Not-So-Fabulous Life. Nikki used her hearing aid as a faux phone 'thingy', but soon discovered that she had an allergy to spray paint. She returned Mrs. Wallabanger's hearing aid afterwards.