'Holibobs' - my current number one most-hated. I unfriend anyone on Facebook who uses it.
Ditto 'hubby' or 'hubs'.
'Little princess' - used, generally, by parents whose spawn have zero manners and ALL the entitlement.
'basically' / 'absolutely' - both overused, usually by people who either aren't listening or have completely failed to grasp the concept of what's being discussed in conversation.
All and all corporate bullshit speak: 'on the same page' / 'moving forward' / 'singing from the same hymn sheet' - so dated, so cliche, so gonna make me do a fake, rictus smile whilst thinking about punching you in the back of the head as soon as you turn around.
Expletives used as punctuation - swearing is a luxury, to be used creatively, imaginatively and with sincere gusto, not because you're a bit thick and need the 'thinking time' a machine-gunned slew of f's and c's allows you. Many people who use expletives as punctuation are entirely unaware they're doing it - which essentially renders them to just the type of mono-celled automata I would cut my own ears off rather than have to listen to.
'Like' - see above. Used indiscriminately, everywhere, sometimes by those of whom I thought better, revealing their secret habit of binge-watching TOWIE and Keeping up with the Kardashians and ingesting vernacular by osmosis. I will move county to escape friendships that become thus tainted. No excuse, ever, and should be punishable with electroshock to the tits, where every utterance gets you a fried nip until the habit is broken.