|Boswell – Scottish author noted for his biography of Samuel Johnson (1740-1795)|
|2.||Boswell – a devoted admirer and recorder of another’s words and deeds
admirer, booster, protagonist, supporter, champion, friend – a person who backs a politician or a team etc.
you will see it in a sentence as referring to someone’s boswell and they would usually be writing down that person’s exploits or adventures
If Sam wrote the story of the Lord of the Rings he would be considered Frodo’s Boswell.