the sigma
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Used for emphasis after an interrogative word or relative pronoun.
Register: humorous, slang
Where it’s used:
Used
American English
Examples
What the sigma is he doing to that dog?
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 “the sigma” mean?
Used for emphasis after an interrogative word or relative pronoun.
Is “the sigma” formal or informal?
the sigma is generally humorous, slang.