蒙牛优酸乳蒙牛差酸乳
[mĕng niú yōu suān rŭ mĕng niú chā suān rŭ]
The name plays on words regarding 'Mengniu Yosun Milk (Yogurt)' products: 'Excellent Yogurt By Mengniu, Poor Sour Drink.' It could imply light sarcasm, humorously comparing product qualities from similar brands or within the same company’s line but differentiating good vs less favorable versions.