jamf means...jive ass motherfucker, can either be meant in good or bad terms!
first used (i think) in "dirty harry"
good... "man that guy looks amazing"
" yeah he's a right jamf"!

bad..." omg look at that jamf..."
by Zzozzie June 24, 2005
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Obviously a reference to "Jive ass mother fucker" but Jive ass mother fletcher is the actual definition as it was defined in sanford & son the show in which it originated
Guy 1: What up?
Guy 2: Shut yo lip jamf!
by Master Pimpstick Price February 13, 2008
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An acronym for jack-ass motherfucker. Used as an insult.
That punk-ass bitch is a real jamf.
by Skiddy Boppa May 29, 2005
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Jive-Ass-Mother-Fucker. Used by Clint Eastwood on Bravo's "Inside the Actor's Studio." Probably more effective as an insult if not used as an acronym.
"You J.A.M.F.!"
"He's such a J.A.M.F."
"Shut up, you J.A.M.F."
by Chives June 16, 2005
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JAMF was NOT invented on Sanford and Son, nor by Clint Eastwood (etc.) although Redd Foxx was certainly hip to the original usage/meaning and used it to "slide one by" the uptight whiteboys on the Standards and Practices committee of his network. JAMF is an acronym for Jive Ass Mother Fucker, a black slang term coined in the late 1930s or early 1940s by jazz musicians, for use in "polite society" when ragging on someone. The word may have other uses/meanings at this late date (it's the title of an Apple multiple device management platform, for instance) but this definition is the correct one. Sometimes spelled "jamph," as in the Maynard Fergusson song title.
"Man, that cat is a JAMF."
by Lord Valve August 12, 2019
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Jamf

Jamf is a gender neutral description for genital discharge. The term covers any category of seepage from the sexual areas and doesn't descriminate smell, colour or texture. It could mean a single source of discharge or a combination of liquids.
"I put my hand in her knickers and it was full of jamf"
by YourHands June 19, 2019
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