get underneath someone's skin

Verb

get under someone's skin (third-person singular simple present gets under someone's skin, present participle getting under someone's skin, simple past got under someone's skin, past participle (UK) got under someone's skin or (US) gotten under someone's skin)

1. (idiomatic) To irritate someone.
   • [T]his Bolshevist stuff gets under my skin. I've got a home and a family here. I started in to work when I was thirteen, and all I've got I've made and saved right here.1920, Mary Roberts Rinehart, chapter 15, in A Poor Wise Man
2. (idiomatic) To make a memorable impression or have a strong effect on someone; to impact someone's feelings, especially when such an effect is not expected or wanted.
   • Some TV shows get under your skin with lovable characters or subtle writing.2003 July 28, James Poniewozik, “Body Shop”, in TIME, archived from the original on 30 Jan 2012