What does the phrase "for the heck of it" mean?
For example, I just found this in a book:
— I just dusted the dining room for the heck of it!
— How thoughtful of you!
closed as general reference by Kris, Andrew Leach♦, tchrist, choster, aedia λ May 2 '13 at 3:50
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It's a minced oath version of "for the hell of it" which means without a particular reason, typically done for fun or enjoyment (fun and enjoyment being presumably things you would go to hell for).