It looks like there might be a small mistake in the word you provided. The word "lungen" doesn't seem to be an English word. However, it seems like you might be referring to "longan," which is a fruit. Let me explain "longan" in simple terms.
Definition:
The longan is a tropical fruit that grows on trees mainly found in Southeast Asia and Australia. It is known for its sweet taste and resembles a litchi nut in appearance. The flesh of the longan is juicy and translucent, covered by a thin brown shell.
In more advanced contexts, you might discuss longan in terms of its nutritional benefits, its role in traditional medicine, or its economic importance in agricultural trade.
The word "longan" primarily refers to the fruit itself. There are no other common meanings for this term in English.
There are no specific idioms or phrasal verbs related to "longan." However, you may encounter phrases like "sweet as longan" when describing something very sweet or enjoyable.