やまかん· also ヤマカン
guess; guesswork; hunch
Also written ヤマ勘
Noun
今回こんかいのテスト、山勘やまかんで書かいた答こたえが全部ぜんぶ当あたってたんだよ。
I used guesswork for all my answers on this test and they were all correct.