be away with the fairies

To be a bit crazy. I can't follow what your mom is talking about—it's like she's away with the fairies all of a sudden.

(humorous)

to be slightly mad It's no good asking her to look after the children - she's away with the fairies most of the time.

Name	Pronounced	Usage
Oluwafemi	-	Western African, Yoruba
Argi	-	Basque
Shae	SHAY	English (Modern)
Jocosa	-	Medieval English
'Ammar	-	Arabic
Montgomery	mənt-GUM-ər-ee, mənt-GUM-ree	English