[bih-jee-zuh s, -jey-]
(used as a mild oath expressing dismay, anger, or the like).
Informal. dickens; devil; deuce: The conglomerate plans to take that tiny company and expand the bejesus out of it.
Origin of bejesus
First recorded in 1905–10; alteration of oath by Jesus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an exclamation of surprise, emphasis, etc, regarded as a characteristic utterance of Irish people
the bejesus (intensifier) used in such phrases as beat the bejesus out of, scare the bejesus out of, etc
Word Origin for bejesus
C20: alteration of by Jesus!
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
mild expletive, 1908, perhaps from by Jesus. To beat the bejesus out of someone is from 1934.
Online Etymology Dictionary, © 2010 Douglas Harper