a lonely little petunia in an onion patch

a lonely little petunia in an onion patch

To be out of place among those one finds unpleasant, uncouth, or overly aggressive. Taken from a 1946 song of the same name by Johnny Kimano, Billy Faber, and Maurie Hartmann. I'm feeling really uncomfortable in this rowdy sports bar, like a lonely little petunia in an onion patch.
See also: little, lonely, onion, patch