bumf
noun [ U ] UK informal (also bumph) uk/bʌmf/ us/bʌmf/
（无用或乏味的）印刷品（如广告宣传单）
printed information, such as an advertisement or official document, that is usually unwanted and not interesting
I got a load of bumf from my bank in the post today. 我今天收到了银行邮寄的许多宣传材料。