橡皮钉子

Explanation: Still soft nails. Compared to mildly rebuke the way obscure or deny. 　　Source: Mao Dun's "Midnight" fourth Tuwei Yue Wu SunFu hear it a second dig at him, and also answered with a rubber nail. "And" before Tomb Sweeping Festival, "the first act [more than the people] there is only one fly in the ointment, in the rubber hit the nail people when the self-mockery, his smile-shaped, his eyes hearted an idiot."