bumf
/bʌmf/(亦作bumph)
noun
ass noun
1- informal, chiefly Brit. useless or tedious printed information or documents〈非正式, 主英〉（冗长、无用的）公文, 文件。
1.1
- dated toilet paper〈旧〉便纸。
词源
late 19th cent.: abbreviation of slang bum-fodder, in the same sense.