Sekirov Dictionary

nail one's colours to the mast

verb1

•
To clearly show one's support for a side or opinion in a dispute, often indicating an intention to defend that side to the end.
- Stood for his country’s glory fast, And nail’d her colours to the mast! — 1808

forms

nailed one's colours to the mast · nailing one's colours to the mast · nails one's colours to the mast

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