nerdle
n.— «Plenty of people have “fake words that the family uses”—for example…“nerdles” (rhymes with hurdles) for dry cat food thingys.» —“Re: GH: Time for MPT” by Kathleen Lenkeit Usenet: rec.arts.tv.soaps.abc Aug. 14, 1995. (source: Double-Tongued Dictionary)
Further reading
If someone urges you to spill the tea, they probably don’t want you tipping over a hot beverage. Originally, the tea here was the letter T, as in “truth.” To spill the T means to “pass along truthful information.” Plus...
When you had sleepovers as a child, what did you call the makeshift beds you made on the floor? In some places, you call those bedclothes and blankets a pallet. This word comes from an old term for “straw.” And: What’s the story...