What words and phrases irrationally (or rationally!) annoy you.
Mine are:
'Doggo' - DP uses this all the time, why make the word 'dog' longer
'No is a complete sentence' - just sounds so dismissive and I doubt anyone IRL would talk like this
'That doesnt work for us' - just sounds rude
'Little man' to describe a boy
'Hubby' - this is irrational as loads of people say this
'Boils my piss' - conjours horrible images in my head 
'Move on' when talking about a bad situation - yeah, because the person with the problem really hasn't thought about that
...
'It is what it is' - one if those phrases that seemed to spawn from Love Island, I dont know why I hate it.
Any more?