Mangali Figure  194 Nallati uḻuna.
Literal Translation His head was rusted.
Meaning of Figure It’s hard for him to learn again, because he’s out of practice.
Usage Said of someone who stops studying for a while (maybe a year) and then when he starts again, it’s harder for him than it was before. Can also be used of an older person who returns to school, or a student after summer break.
Figure metaphor
Image nature; rust
Topic action; learn, not