heck


Concise Oxford English Dictionary © 2008 Oxford University Press:
heck/hek/
exclamation expressing surprise, frustration, or dismay.

■ (the heck or a heck of a ——) used for emphasis: a heck of a lot of money.

– origin C19 (orig. northern English dial.): euphemistic alt. of hell.
'heck' also found in these Oxford entries:

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