slipped my mind
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
I forgot about it.
Register: neutral
Sources & notes
Curated everyday-idiom list, site editorial 2026-07-30.
Common questions
What does “slipped my mind” mean?
I forgot about it.
Is “slipped my mind” formal or informal?
slipped my mind is generally neutral.