to moon on

9.5

To sit or stand and stare while lost in thought

phrasal verb
/mun ɑn/

: estar en las nubes

He would often moon on by the window, lost in his own thoughts for hours.

Examples

Instead of working, she spent the afternoon mooning on about her future.
Don't moon on when you should be working!
Children sometimes moon on during class, not paying attention to the lesson.
She loves to moon on during her lunch breaks.
He would often moon on by the window, lost in his own thoughts for hours.
Children sometimes moon on during class, not paying attention to the lesson.
She loves to moon on during her lunch breaks.

Synonyms

to moon

vsto moon on

8 7.4

To spend time thinking and not pay attention

is idle and listless rather than only mentally absorbed

to moon around

vsto moon on

Informal

1 8.1

To spend time daydreaming and doing nothing useful

is dreamy and idle rather than actively distracted or apathetic

to moon about

vsto moon on

1 8.1

To walk or sit around slowly while feeling sad and lost in thought

is dreamy and idle without the strong sadness or longing

Antonyms

to be active

89 1.0

To move your body often by doing exercise or play

How Dreamy

to space out

Informal

4 7.7

to daydream

39 2.3

to moon on

9.5

lost in thought

7 4.2

Surface Forms

moon on infinitive

mooned on past

mooned on past participle

mooning on present participle

moons on third person singular

Morphology

moon + on

The sense 'to be idle in a dreamy or listless manner' is directly derivable from combining 'moon' (to daydream) with the particle 'on', which here adds a sense of continuing/ongoing action. Given knowledge of both constituents, a B1 learner would readily infer this composed meaning, though note 'moon' as a verb is somewhat colloquial.

Etymology

The verb moon on may come from the image of someone staring at the moon and becoming quiet and dreamy. One popular story says that because the moon makes people look lost in thought, moon on came to mean 'be idle and daydream'.