Zeroing

[Merna]

When youre smoking weed and you [take a hit] and you [hold in] 100% of the smoke from the inhale, exhaling zero smoke from the hit. Done in order to get maximum effect from the weed. Requires great skill and is worthy of respect from other [smokers].

[Zipporah Schumaker]

When two individuals [partake] in consuming each [others] [anuss].

[Sommer]

to direct all your attention to one thing: