[Aachen]

I've never heard it in my life and I play games (not Dota) and get around on the internet generally. My first association was clank from hermitcraft's decked out, but that didn't quite fit. Farming is what I figured from context, though

[charcircuit]

It's such a common term around mobas that I doubt you haven't heard it before. Considering the popularity of the genre it's statistically unlikely that it hasn't come up.

[sincerely]

Unlikely things happen all the time :)

[Aachen]

I don't play mobas specifically, though