i know we aren't supposed to put fake names on the forms, but it's a real pet peeve of rachel's, so make extra sure she doesn't catch you
something that is maybe a bit annoying to most people but is very annoying or upsetting to a particular person
"i know we aren't supposed to put fake names on the forms, but it's a real pet peeve of rachel's, so make extra sure she doesn't catch you" What is the definition of "pet peeve"?