Informal use of the modal verb have to.
"What do you haf to do today?"

I haf to clean the litter box and do my homework.
by Mistur Minecraft May 15, 2020
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”HAF” can be described as being “high af”; High as Fuck, this can be used in many situations and contexts.
(The chill)
Dude your so HAF right now, I’m fucking loving it, share.
Or
(The angry)
Girl you HAF !! Shut the F up...
Or
(The excited)
Bitch you HAF, like same tho!
by Thatgaybitch101 February 18, 2019
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Abbreviation of 'high as fuck'. To get extremely high, smoking marijuana.
'Did you get anything off that?'
'Yeah I'm high as fuck!' (HAF)
by Bou Bou January 22, 2006
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H- High
A-As
F-Fuck

you place it after a sentence if when you typed it you were high as fuck.(haf)<-Like that
Holy Shit I love my grandma she bought me Reese peanut butter cups!(haf)
by Bad-Fish June 29, 2011
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Hipster as Fuck- Referring to the douche bag sitting at the end of the bar with a curly mustache, top hat, and smoking a corn cob pipe.
Look at the tweed jacket, that shit be haf!
by Jack_handy & balz_mcgilacuty November 27, 2015
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ugh you know robby too? He always makes me laugh HAF!
by Dat_flo_rida_bish May 16, 2015
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Tyler says:
*is he HAF?
amberr started a riot , says:
*what? hahaha
Tyler says:
*...
*Hard As Fuck
amberr started a riot , says:
*OH see , when you said HAF
i was like "horny as fuck"
D:
by Amberr Started A Riot December 8, 2008
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