Dwell in an/(one's) ivory tower phrase
To live in a place or a group that is composed entirely of effete academics, and therefore not know about the pratical problems that happen in people's lives.
Stop dwelling in your ivory tower! You had better experience the complication of the real world.
A book like this must be written by the intellectual who has dwelled in his ivory tower. All the knowledge in it seems unrealistic.
The verb "dwell" must be conjugated according to its tense.
This phrase is formed based on the meaning of the phrase "ivory tower".
Someone who is totally bad at doing something.
Mary really can't sing for toffee.