Anyone have some thirty?

[Philip Trauring]

If you're at the beach and someone were to ask you if you had some
thirty, you'd understand that he/she meant SPF 30 sunscreen. As
sunscreens come in very specific SPFs (2, 4, 6, 8, 15, 30, 45) you'd
probably understand if someone asked using any of those numbers. You
would likely be confused if someone asked for some 34 or 16. I
suppose these number don't pick up definitions based on this
observation, yet their meaning is very clear when you're out at the
beach or any area where people put on sunscreen.

Philip Trauring