cat's tongue
Pixiv
Twitter
Bluesky
Weibo
Lofter
Tumblr
(dislike of very hot food or drink; inability to take hot food).
The expression, as a pun, is also applied to characters with cat-like features being sensitive to hot food.
Tag if the character is either blowing on the food to cool it down or is obviously showing discomfort at the hotness of the food.