13d keg {Miller site?}. Referencing the Miller beer brand . 31d cats {Boppers}. Equivalent in the sense of jazz devotees. 32d pulp {Amazing Stories, e.g.}. Amazing Stories was an American science fiction magazine launched in April 1926. Image of the Day 45d O'Doul's {Nonalcoholic beer brand}. Searching for images for this answer,