English · Phrasal verb Attested

mull up

In real, traceable use. Part of the curated seed collection; community review is coming.

Meaning · English

To mix cannabis with tobacco.

Where it’s used: Used Australian English

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “mull up” mean?

To mix cannabis with tobacco.

Is “mull up” formal or informal?

mull up is generally slang.

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