Touch (someone) on the raw - Idioms by The Free Dictionary
touch (one) on the raw (redirected from touch (someone) on the raw)
touch (one) on the raw
To do or say something (such as mentioning a sensitive topic) that causes one to feel agitated or self-conscious; to touch a nerve. Primarily heard in UK. I accidentally touched Vanessa on the raw by mentioning her new haircut—apparently, she's really unhappy with it.
touch someone on the raw upset someone by referring to a subject about which they are extremely sensitive.
catch/touch somebody on the ˈraw (British English) upset somebody by reminding them of something they are particularly sensitive about: She touched him on the raw by criticizing his driving.