1
general::
Phrase(s): *a thing or two (about someone or something)
1. bits of information or criticism about someone or something; a few facts about someone or something. (*Typically: find out ~; know ~; learn ~; tell someone ~.) • I told Bob a thing or two about cars. • I know a thing or two about Mary that would really shock you. 2. a few points of criticism about someone or something. (*Typically: tell someone ~.) • I told her a thing or two about her precious little boy! • Let me tell you a thing or two about your messy yard!
McGrawhill's American Idioms And Phrasal Verbs