なん何nanてte
1.
An expression used to convey strong feelings of surprise or admiration, often highlighting an impressive or endearing quality of something.
2.
A colloquial form of "what" or "how" that expresses disbelief or amazement about a situation or characteristic, often used in informal contexts.
3.
A casual phrase for referring to something in a manner that indicates a lack of formality or precision, often accompanied by a sense of curiosity or inquiry regarding its nature or qualities.
Example:
彼はなんて大食らいなんだろう。