What is another word for knock chip off shoulder?
Pronunciation: [nˈɒk t͡ʃˈɪp ˈɒf ʃˈə͡ʊldə] (IPA) 
The phrase "knock chip off shoulder" refers to the act of challenging someone who appears defensive or easily provoked. There are several synonyms for this phrase that convey a similar meaning, including "get under someone's skin," "strike a nerve," "push someone's buttons," and "provoke a reaction." Each of these phrases suggests a degree of agitation or irritation on the part of the person who is being challenged. Whether used in a lighthearted or more serious context, these idiomatic expressions convey the idea that someone is being deliberately provoked or tested, and that their reaction is closely watched by others.
