let (one) by

let (one) by

To allow one to pass by or around (someone or something). I need to get into the building to retrieve my briefcase—please let me by! I didn't want to drive any faster on the highway, so I moved closer to the curb to let the cars behind me by.
See also: by, let
Farlex Dictionary of Idioms.

let someone (get) by

 and let someone pass by
to permit someone to pass. Please let me get by. I am in a hurry. Let the paramedics by, please.
See also: by, let
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • let (one) get by
  • let (one) go by
  • let by
  • let (one) go past
  • let (one) get past
  • go past
  • let (one) pass by
  • let (someone or something) past
  • let past
  • get (something) for (someone or something)