Spottle

[Magaret]

When partaking in [cannibis] spots you need something to [get the smoke] from the knives into your lungs. One of the best ways of doing this is to [knock the bottom out] of a glass bottle (can be done by dropping a knife in the top) to create a spot bottle hence the name spottle.

[Tariq Zaki]

To spot or spatter thickly; to splash.