noun
suspicion of being a dud; smells like a bomb
Slang used when something (game, product, etc.) seems likely to be low-quality or disappointing, like stepping on a landmine. Often used in online reviews and discussions.
あの新作ゲーム、地雷臭がすごいから買うのやめた。
That new game really smells like a dud, so I decided not to buy it.
レビューを見たら地雷臭しかしなかった。
After reading the reviews, I got nothing but a strong suspicion it's terrible.
Compound of 地雷 (landmine) and 臭 (smell, odor), literally 'landmine smell'. Figuratively used to express a strong hunch that something is a hidden failure.