icky

So today I'm in my office and I hear something. Can't figure out where it's coming from.
Then I look down and at the wall and carpet and see foamy spatters on the wall and in the carpet, then up at the ceiling and see these icky stalagmites oozing out.
Something nasty - and foamy - is seeping out of the ceiling into my office. Next to my computer.
I have no idea what this stuff is.