RichThesaurus
play one's guts out
vs
slog one's guts out
play one's guts out
verb
Synonym of sweat one's guts out
slog one's guts out
verb
Synonym of sweat one's guts out
How often have the words
play one's guts out
and
slog one's guts out
occurred in a corpus of books?
(source:
Google Ngram Viewer
)