heck
exclamation
[ hɛk ]
• expressing surprise, frustration, or dismay.
• "oh heck, I can't for the life of me remember"
Origin:
late 19th century (originally northern English dialect): euphemistic alteration of hell.
a heck of a —
• used for emphasis in various statements or exclamations.
• "it was a heck of a lot of money"