get under one's goat vs mither

get under one's goat

verb

  • To irritate or annoy someone; to bother. 

mither

verb

  • To pester or irritate someone. 

  • To make an unnecessary fuss, moan, bother. 

noun

  • mother 

How often have the words get under one's goat and mither occurred in a corpus of books? (source: Google Ngram Viewer )