"꽁머니" refers to free bonus money or credits often given by online casinos or betting sites to attract users. It's a popular term in Korea, used to describe promotional funds that can be used to play without depositing real money. 꽁머니

"먹튀보증" refers to a scam verification or scam prevention guarantee system used in online platforms, especially gambling sites, to ensure user safety by verifying trustworthy sites and preventing fraud or "eat and run" scams. 먹튀보증