someone's one and only

one and only

1. adjective A phrase used when introducing someone to emphasize that they are famous and uniquely talented. It gives me great pleasure to welcome the one and only Oprah!
2. noun One's only true love. Of course I'll stay true to you while I'm gone—you're my one and only!
See also: and, one
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

someone's one and only

someone's one true love. informal
See also: and, one
Farlex Partner Idioms Dictionary © Farlex 2017
See also:
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