How big is this bong? Like, 10 ft or something.

Just hide it behind something, or in a drawe wrapped in some clothes. I don't know man, I don't know what your house looks like, so I can't really tell you where to put it.

When I hid my bong, I had speaker stands for my 2 speakers, and they were hollow, so you could put the speaker stand right over top of something. That's where I hid it for the longest time.