不置可否 To set down neither yes nor no. To give no position at all.
打哈哈 To go “haha.” To brush someone off and deal with a matter only on the surface.
打官腔 To speak in the official tone. To use official set phrases to deal with a request or to pass it on.
搪塞 To plug one hole. From an image in the Huainanzi of a dike with ten thousand holes, of which only one is plugged. To deal with something only for form’s sake.
婉拒 To refuse gently. To decline in a roundabout, polite way.