"Next weekend" "Next Friday" etc. Wherein they use "Next" to mean "the one after" rather than "the soonest interval in which it will reoccur"
If it is Wednesday and you say "Next Friday" I will immediately think of two days from now, not 9 days. I also especially dislike it because if feels like on a whim that it'll change. for some "next weekend" will be in 5 days if it's Monday, or 10 days if it's Wednesday! What the heck people??