Spice is several different legal herbs combined that is a substitute for marijuana, sold as incense just like salvia.
When you smoke spice out of a bong the bong water smells significantly different than bong water that was used for smoking marijuana. Therefore, Spice water is just bong water that had spice instead of weed filtered through it.
Dude this spice water smells sooo fuckin nasty!
Ya it taste like shitty gravy or somethin
WTF, I can't believe you just drank that!
Buauauaua! (Hank hill scream of terror)