Take your grandfather's occupation and a fancy word you don't quite understand and hey presto...craft beer. For example: "Farmer's Pathos" possibly a wheat beer. Or "Mechanic's Hubris" sounds cheap and nasty. Your turn...
Homeless light Cheap light beer Thick as a brick Nice dark brew or Old Black Water Nice dark brew Keep'em com'in light beer
Ok ok I'll follow the rules .... but truth be told that last one was a real life experience with a friends home brew . . . it was decidedly NOT good. Electrical Bandersnatch
Why make one up when there's this... Monkeynaut IPA – Straight To Ale Not that my gramps was a monkey or anything. I think that was a few more generations back.