schmo

or schmoe

[ shmoh ]
/ ʃmoʊ /

noun, plural schmoes. Slang.

a foolish, boring, or stupid person; a jerk.

Origin of schmo

An Americanism dating back to 1945–50; of obscure origin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for schmoe

schmo

shmo

/ (ʃməʊ) /

noun plural schmoes or shmoes

US slang a dull, stupid, or boring person

Word Origin for schmo

from Yiddish shmok
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