young and tender

tender green

young grass

Dom Pérignon (champagne)

Short for ドンペリニヨン (Don Periniyon, “Dom Pérignon”).

(geometry) obtuse angle

(both literally and figuratively) absolute lowest point, rock bottom, very bottom / very bad situation, catastrophic situation, the abyss

(offensive, Internet slang) a man whose age is greater than about thirty or forty who lives in one's child room and with one's parent(s).

(onomatopoeia) heavy and bobbing in water

cloudy weather / cloud up