Gin is a get it now option, where you can set a certain number of credits which will end the auction if someone chooses to" get it now" instead of being out bid. F&W means fanned and watching, you can fan someone to check in on their auctions any time if you like the things they list and think they might post more things you would like to bid on, watching is for that particular auction so you don't have to search for it again.