Covers of songs in TV adverts.
Over emotive singing.
The last 20 years of commercially successful singer songwriters.
Adults on skateboards who are rubbish
Personalised number plates
Most of the words that have been added to the OED in my lifetime.
Fingernails down a blackboard.
There's no finer thing than a REALLY nice car that doesn't have a personalised number plate. That's class.
At the other end of the spectrum..... actually it's everyone with a personalised plate isn't it. But the ones on shit cars are the worst. Buy a decent car instead you idiots.