The phrase "blue tongue" refers to a condition when a person or animal has a tongue that appears bluish in color.
Sentences with «blue tongue»
From its earliest days, these dogs have been known for their distinct blue tongue and heavy, thick coat which makes the breed identifiable in historical references. (dogcare.dailypuppy.com)
For example, eat that blueberry pancake and show him your magic blue tongue. (attachfromscratch.com)
I adopted a mix breed that has a black mouth with a solid blue tongue. (pethelpful.com)