overwhelming power; effortless victory
A yojijukugo meaning that a vastly superior force easily crushes a weak opponent, like Mt. Tai crushing an egg. Also used for accomplishing things with ease.
A large corporation acquiring a small startup is truly like Mt. Tai crushing an egg.
彼の実力なら、この試験は泰山圧卵だろう。
With his ability, this exam will be a walk in the park.
A similar idiom meaning to pit a weak force against a strong one, emphasizing the futility of the weak side's action.
From Chinese classical literature, literally 'Mt. Tai crushes an egg', symbolizing overwhelming force against something fragile.