RichThesaurus
hang up one's boots
vs
strap on the boots
hang up one's boots
verb
retire, call it a day
strap on the boots
phrase
To prepare to play a field sport; to take up playing a field sport.
How often have the words
hang up one's boots
and
strap on the boots
occurred in a corpus of books?
(source:
Google Ngram Viewer
)