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A subsitute for the words 'hell' or 'fuck'. Originated in Guam.
What the heff does that guy thinks hey's doing?
by (nick][dr) March 10, 2009
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3
Hell and Fuck(eff) mixed to make a more suitable word of context for those around the vulnerable eared people. ie children, bosses, nuns, priests, old people.
What the heff is that on your shirt?
by Nik-Weezy January 13, 2009
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4
(v) to masturbate and then shower, but tell your friends you are only showering. Thus making them assume that every time you shower it is after you masturbate.
Joe: Yo bro you wanna meet up tonight?
John: Yeah im at home and im gonna heff quickly before i come meet you.
by Craiff December 06, 2008
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5
heck & eff mixed together.
what the heff are you doing?!
shut the heff up.
stop heffing doing that!
by cicibopper November 18, 2009
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6
A heff is a sigh but also comes with more meaning, it is another way of saying I don't care/ most mean words, you can say it under your breath or out loud to someone they most likely might not know but its a good way of saying it to a disliked one.

Mean words/maybegood

1.(of course) I don't care
2. Fine
3.I'm realeved
4. Leave me alone

5. Stop
Boss : " I told you to clean out the cash register! "
Woman : " heff!, I'll do it later" *smerks*
Boos : " well, alright then but this is your last warning!"
via giphy
by darkskygamerr August 02, 2016
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7
A word used mostly in form of text, to describe a feeling of annoyance, boredom or frustration.
They had me stacking the shelves again, even though they said I'd be on the tills again. Heff

1: Did you know they cancelled tonight's episode?
2: What? Really?
1: Yep. Cancelled until next week.
2: Heff
by TwiggyZap October 25, 2018
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