Läckert
Läckert is a Swedish informal adjective and adverb meaning tasty, delicious, or cool, depending on the context. In culinary use, it describes food that tastes good—läcker mat or en läcker rätt. In a broader sense it can express admiration for something impressive or well-made, as in det var läckert meaning that was awesome or that was slick. The term functions as a colloquial praise word and is common in everyday speech, social media, and youth slang. It is not considered formal language and may sound out of place in official writing.
The form läckert is most often used predicatively: Det var läckert or as an exclamation simply Läckert!
Etymology: läckert derives from the adjective läcker, meaning delicious or appealing. The development mirrors Swedish patterns