also: なにコレ
what the?; what's this?; what's going on?
Colloquial interjection expressing surprise, confusion, or disbelief upon encountering something unexpected. Often used when seeing, hearing, or experiencing something strange.
冷蔵庫を開けたら、何これ、変なものが入ってる！
I opened the fridge and, what the? There's something weird in here!
何これ、この書類、間違いだらけじゃない。
What's this? This document is full of mistakes.
Variant with katakana コレ for emphasis or casual style.
All-katakana spelling often used in manga, social media, or for strong surprise.
A colloquial interrogative formed by placing 何 before これ, corresponding to ordinary これは何 or これ何, “what is this?”