Consider yourself very lucky, they suck out loud.
Brain freeze also called ice cream headaches happen when the roof of the mouth and/or soft palette are rapidly cooled, often by eating frozen food like ice cream, smoothies, slushies etc. The pain gets referred to the entire volume of the head, it can feel like you’ve been hit in the eye or the top of the head with a hammer. Eating warm food can quickly stop it; I personally, if I get fast food with a shake or something I can feel it coming and I’ll eat a french fry or two to stop or prevent it.












Similarly…Americans size wire carpentry nails as some number followed by a d. 16d nails are most common for nailing together two-by lumber as standard in structures, 8d are used for one-by lumber trim or plywood.
The d is pronounced ‘penny’. And like most of the stupid little stuff we do, it’s the Limeys’ fault.
Back when the UK had three moneys rather than two, they abbreviated pound as L (as above), shilling as S and, for some crumpet eating reason, pence as d. At some point in history, nails were sold in lots of 100, and different sizes at different prices. A box of large framing nails might cost 16 pence, a box of small tacks might cost 4 pence. The terminology has pretty much stuck to this day.