The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Frank and forthright: straight-from-the-shoulder reporting.
straight-from-the-shoulder - Phrases/Idioms
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.
In a direct, forthright manner, as in I'll tell you, straight from the shoulder, that you'll have to do better or they'll fire you. This expression comes from boxing, where it describes a blow delivered with full force. Its figurative use dates from the late 1800s.