Hi-friend 

An old acquaintance towards whom you are either luke warm or simply ambivalent and who you do not usually wish to engage in casual conversation. As a result your only interaction with this person is a brief "hi," "hello," or perhaps a (rhetorical) "what's up?" or "how's it going" when you happen to see them at the mall or encounter them awkwardly at the company watercooler.

Although I was close to Gabriel in high school, he's just a hi-friend to me now.

Hi-friend by Duranimal February 11, 2007

Hi Friend 

A song by Canadian electronic music producer Joel Zimmerman (aka deadmau5). There are two versions of this song: one with vocals by MC Flipside and one without vocals. Both are high quality listening material :)

'Hi Friend' is an awesome track!!!!

Hi Friend by Rellik Uzi August 18, 2010

hi friend 

what you say to someone who is not your friend

HI FRIEND

hi friend by 3tfrgrdiUZHYAS^&KmL JSCUfdckjl December 19, 2016

Hi friend 

Lol looks like I got in trouble again so I’m on urban dictionary one more time.
So ye Pc and whoever else of my friends decide to read this hi I’ll be back in a month.

Bye bye

Hi friend

Hi friend by Chocomilkdiva January 14, 2021

hi bye friend

A person you would say "hi" and "bye" to casually, but little more. Generally someone desirable as an acquaintance and not anything more.

From "This American Life"

After she said "no" to a date, she said we could remain hi bye friends.

hi bye friend by flykiddoc August 18, 2009

hi and bye friends 

People who say hi when you come to school/work and occasionally have sexual interaction with you

I have 34 hi and bye friends

hi and bye friends by George Humphery November 3, 2017