con crud
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
An illness resulting from having people from a wide variety of places at a single gathering such as a convention, allowing disease to spread easily among them due to lack of immunity.
Register: slang
Where it’s used:
Used
American English
Examples
Much has been said about those who go to furry and SciFi conventions and return with the "Con Crud."
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “con crud” mean?
An illness resulting from having people from a wide variety of places at a single gathering such as a convention, allowing disease to spread easily among them due to lack of immunity.
Is “con crud” formal or informal?
con crud is generally slang.