拙口钝腮

Explanation: Analogy Zuiben, not eloquence. 　　Usage: Joint type; as object, predicate, attribute; containing derogatory 　　Source: Ming Wu Cheng-en, "Journey to the West," the eighty-eighth time I so stupid halogen, humble mouth blunt cheek, not speak. " Thesaurus:  Awkward in speech, awkward in speech, Zhuokoudunci