A salesperson that I worked closely with like to use: “Drinking our own champagne.” I liked it enough I started using it though the engineer in me tends to be fine with “dogfooding”.
"Use your own product" was too simple and direct.
"Using your/their own product" is six syllables. Dogfooding is half that.
In the version without "ing", that's 5 versus 2 syllables.
Why? Keeps you humble.
Fine, fine. But I'm going with 'Cat-Chowing' instead.