I can't stand "Can I get" as in "Can I get a cheeseburger and a coffee" rather than "I'd like" or "may I have".
It drives me insane.
Also, when people say things like "You remind me of Hugo the Hefferlump. You won't know Hugo the Hefferlump. He stood as a Lib Dem candidate in a suburb of Bratislava on 6 February 1923 coming in second. Maybe." If it's only a maybe, why do they mention Hugo the Hefferlump in the first place?