bird in (one's) bosom

bird in (one's) bosom

obsolete An oath of faith, servitude, piety, or conscience that is kept guarded in one's heart, mind, and spirit. Truly, my lord, I am at your service and loyal to your name, and I shall guard the bird in my bosom till my last breath.
See also: bird, bosom
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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