撒狗粮sā gǒu liáng

撒狗粮
sā gǒu liáng
To understand 撒狗粮，we need to know another internet slang 单身狗.
“单身(dānshēn)” means “single,” and “狗(ɡǒu)” means “dog.”
Normally only a person would nly call himself or herself “dānshēnɡǒu” in a self-deprecating manner.
When a couple act lovey dovey in fromt of 单身狗, this is called “sprinkle dog food”.