deffinetly not a good idea. the point of a bong is to filter out the stuff you dont want in you. so drinking that afterwards would be silly. and using beer/liquor is just silly. if you did it with water thats one thing.
I am what I eat. Hayooo. But idk if I like the idea of having it filtered through beer. Why not just filter through water, but keep yourself a beer to the side?