umfriend 

a person with whom you are in a physical, but not necessarily romantic, relationship

also uhm-friend, uhmfriend, um-friend

"Oh...Hi mom, this is Steve my um...friend"

umfriend by mr.tickles August 22, 2005

umfriend 

Noun used to describe someone who you are banging, in the stage before she is your legitimate girlfriend

"Oh Hi guys, I hope you don't mind that I brought my um...friend Ursula to our poker night"

umfriend by Stan July 27, 2004

UMFRIEND 

A sexual relation of dubious standing or a concealed intimate relationship.

"This is Bridget, my...um, friend."

UMFRIEND by Zak May 3, 2003

Umfriend 

Noun; a person with whom one's relationship is ill-defined, illicit or uncertain.

This is Xxxxx. He's my umfriend.
(Not to be confused with "unfriend", verb; to remove a person from one's list of "friends").

Umfriend by Azenath69 December 5, 2021

umfriend 

a euphemism for 'fuckbuddy'
only pussies say umfriend

girl: this is my umfriend Jake

umfriend by jolee February 17, 2009

The UNfriend-zone 

It is when your friend finds a new piece of ass/interest and you soon find yourself becoming nonexistent to them. Its more common between a male and female friendship then a same sex friendships.

Megan: "Hey have you noticed since Brad started talking to Kelly he stopped talking to me."
Steve: "Sorry to say this but no matter how you look at it you are in The UNfriend-zone."

The UNfriend-zone by Dat Vern August 17, 2012