ARSEMONGER Share definition Flag Noun , meaning seller of arse. Monger used as in fish monger, iron monger. One who sells arse, a pimp Goodness ! , these goes that horrible arsemonger, he's not a nice person at all. ARSEMONGER by Dr Lingus January 4, 2008 0 0 Get merch Get the ARSEMONGER mug. Buy Now — $32.95 See more merch