characterized by a shy, embarrassed, often provincial manner.
Origin of aw-shucks
First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
seeming to be modest, self-deprecating, or shydon't be fooled by his aw-shucks attitude
Word Origin for aw-shucks
C20: from the US interjection aw shucks, an expression of modesty or diffidence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012