jamf 

An acronym for jack-ass motherfucker. Used as an insult.

That punk-ass bitch is a real jamf.

jamf by Skiddy Boppa July 18, 2008

Jamf 

Just about managing families

Also:
Jive assed mother fucker

This government is committed to helping jamfs

Jamf by Davidcfcster November 23, 2016

Jamfuck

Sex position with girl on bed, hips up, supporting her bodyweight herself with her partner controlling her hips. Almost like reverse cowgirl but laying down.

James: Babe, let’s Jamfuck
Hannah: Ok babe

Jamfuck by ryan was 100% taken April 2, 2021

Jamflex 

Jamflex is often used to name Jagex, the owners of the game Runescape. Jamflex has a more negative meaning.

Jamflex, fix your servers! They're laggy.
Evolution of Combat fails... Come on Jamflex, remove it.

Jamflex by Psbsl0l December 13, 2013

jamfest

The shittiest cheer competition company ever

Jamfest is full of liars.

jamfest by oiwueropiweuroiweur December 14, 2013

Jamfan 

A man who enjoys sexual intercourse with a woman during her period.

"Mary had never met a jamfan before but at least it meant they could fuck 365 days a year"

Jamfan by Edna Sweetlove September 26, 2006

JAMFuQ 

(ACRONYM) Just Answer My Fu*king Question

Pronunciation - JAMFUK

You urgently email or text someone with a simple query, only to receive a long winded diatribe addressing everything but the original question you had posed.

Your response - "For god's sake, JAMFuQ"

JAMFuQ by SkidRowPlo April 9, 2010