mast
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
The anabolic steroid drostanolone propionate, also known as Masteron
Register: slang
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “mast” mean?
The anabolic steroid drostanolone propionate, also known as Masteron
Is “mast” formal or informal?
mast is generally slang.