thin up
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To become or make (something) thin (in either width or viscosity).
Register: informal
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 “thin up” mean?
To become or make (something) thin (in either width or viscosity).
Is “thin up” formal or informal?
thin up is generally informal.