I'm interested to see how the roll turns out - gave it for development the other day, had a good laugh with the employees though.
I now have a mnemonic for it: Blor - a (somewhat) portmanteau of Blur and low. So low aperture = blur.
Edit for clarification: I mean low number (2 vs 32) = blur
The smaller, i.e. the closest to an ideal pinhole camera, the wider the depth of field is. A an ideal pinhole camera has infinite depth of field.
Unfortunately the aperture f numbers are the wrong way round; larger numbers correspond to smaller diameters.
Unfortunately the lower number actually means bigger aperture.
With my mnemonic, I say low *number = blur
I should have been more specific
Denominator, not numerator. That's why larger number = smaller aperture.
But photographers generally just say "f2", meaning an aperture value of two set on the dial of the camera/lens. It's one stop faster (twice as much light) as f/2.8. It'll give you a relatively shallow depth of field, but not as shallow as e.g. f/1.4.