Sp I was compressing my slave cylinder to reinstall it. Well as I was doing that, I heard a pop/thud coming from what sounded like the clutch pedal area in the cabin. Now I dont have any compression in my clutch pedal. Did I just mess up the slave cylinder or something else?

 

i didnt know slave cylinders had compression but maybe u should try to bleed it

 

sounds like you need to bleed it, well if you have had the slave off the car you HAVE to bleed it.