In reference to a blumkin, an I'll do anything is when she is actually the one taking the shit and you're the desperate perve willing to eat her out on the toilet. It works better and feels better for her if terds are actually plopping while your flopping your slimy little orgasim giver. Hence the term I'll do anything to make her happy.
Man be careful and always remember to go from bottom to top when doing the i'll do anything cause it can be quite a mess.
