I'm still not sure what tsuchinoko meant by drinker in this context because that's exactly what she said.
A brief search on Twitter suggests that イケるクチ has wider meaning than drinker.
It is somewhat informal phrase and may well have a meaning that is not on a dictionary.
WHOAAA!! *cough cough*You're... quite strong.Not you!The most one could do is to use this as a pseudo-currency in some sort of amusement center.I see.That was close... Thanks for your help.Hmm... What's this metal fragment?This is none other than evidence of an advanced monetary economic system.Y-you... you must be an expert, aren't youuuuuu!?That's a Japari Coin!Wait, the poor material quality might suggest otherwise.Now listen, Japari Coins are actually...WOWHAAT?A finely crafted coin, I must say.Right? Right? Aha!
