Ah, that's just my writing: it's "2 oz icing". I was trying to calculate how much "real"
icing to add to "real cake" to make the consistency work for cake balls.
If you take the time to look, there are 1,385,579,386,201,827 Internet recipes out there that use 1 prepared/baked "box cake mix" (like Duncan Hines, Pillsbury, etc) mixed with 1 "can" of icing. Depending on the icing brand, that can be a 12 oz or 16 oz can. That's a huge difference in quantity as far as I'm concerned. Plus I think canned icing taste horrible.
so...my experiments showed 1 lb of baked/crumbled "regular" scratch cake combined with 2 oz of a buttercream icing makes a good density for balls.