I don't know anything myself, but I found this:
A terp slurper is a new design on an old method of dabbing. While buckets have been common for several years, this style of bucket helps ensure less wasted product regardless of the size of the dab consumed.
Similar to a traditional bucket, the terp slurper has an additional tube leading down to an open tray, or skillet. Small slits in the bottom of the tube allow airflow to continuously flow as the consumer inhales, creating a vacuum which constantly “percolates” the shatter, wax, or resin. With a dome or cap, the percolation keeps the oil moving over the heated surface, preventing burning the product and allowing more time for the vapor to be inhaled.
The biggest advantage of this innovative new design of quartz banger is it allows for complete usage of the product even in large doses. In addition, by preventing burning, the airflow created by the slits in the bottom dish improves the overall flavor of the dab.