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Deriving from ‘have to’, or ‘have+{infinitive}’ broken down into ‘have+to+{verb}’ but minus the verb, ‘hafta’ works as a verb-modifying adverb taking the place of the modal-auxilary ‘must’ which means literally ‘to be required to __’. In colloquial speech (as opposed to ‘formal speech’ under which you would not use this word{hafta}}, it means simply to have a strong desire towards, or want for, doing {something}, with the ‘something’ usually seen through the eyes of the speaker as a *necessity* (even if in actuality it is no more than icing on the cake).

Synonyms: haveto, have to, must, ’ve to, oughtta{ought to}, wanna\wanta{want to}, gotta{got to}

See also: musta\must’ve(must have..not nonsensical ‘must of’), shoulda\should’ve{should have..not nonsensical ‘should of’}, ta\tta, -ta\-tta, t‘be
spoiled teen: I just *hafta* have it!!

"I hafta go now.. Talk t‘ya later."
by Victor Van Styn August 12, 2005
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Aug 5 Word of the Day
When your so pissed off from losing multiple amount of games that you play worse and worse till your so pissed you begin leaning over your keyboard screaming over every little mistake you make and complaining about gaming imbalances

(Common in Starcraft II)
"Why is johnny screaming at his computer"

"He lost a few games of Starcraft II, I think he is Tilting"
by Lashley1337 February 14, 2012
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being obligated to preform a given task
a verb, meaning "have to"
Did you hafta go and boink her before dinner?
Now you havta take a shower.
by Kimmie H October 19, 2006
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Deriving from the phrase ‘have to’(which is have+infinitive, broken-down into have+to+{verb}, but minus the verb), ‘hafta’ usually functions as a verb-modifying adverb replacing the modal-auxiliary ‘must’, ‘required to ___’; used to show a strong desire toward, or want for, doing something.

See also: gotsta, wanna, oughtta, tta\-tta
spoiled teen: “I just *hafta* have it!!”
by Victor Van Styn August 09, 2005
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Anyone, especially a senior citizen, handicapped person, or person with a child or children, that you "hafta" leave a seat on the bus, train, or plane.
It's the weekend, and you know what that means: the bus schedules are all FUAU and every hafta and his dog is getting on the bus to go shopping!
by pentozali November 29, 2006
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