solecisms
some common solecisms, from the economist.
OED:
solecism:
1. An impropriety or irregularity in speech or diction; a violation of the rules of grammar or syntax; properly, a faulty concord.
b. Without article: Violation of the rules of concord in grammar or syntax; incorrect or ungrammatical speech or diction, or the use of this.
2. A breach or violation of good manners or etiquette; a blunder or impropriety in manners, etc.
3. An error, incongruity, inconsistency, or impropriety of any kind.