do someone

Do one!

Get out of here; go away; get lost. Chiefly Liverpool and Lancashire slang. Primarily heard in UK. I'm sick of your prattle. Do one, mate, and leave me alone!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

do someone

Also see do one.
See also: someone
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
She said: "I was only trying to do someone a good turn and was on my way to play carols at the DEBRA charity shop in Netherton.