“High Five Friday” (or “High-five Friday”) is a day to celebrate the week’s accomplishments, such as by giving a person a “high five” hand gesture. “High Five Friday” has been cited in print since at least 1999. It’s not known where the first “High Five Friday” celebration occurred.
   
 
Wikipedia: High five
The high five is a hand gesture that occurs when two people simultaneously raise one hand each, about head-high, and push, slide, or slap the flat of their palm against the flat palm of the other person. The gesture is often preceded verbally by a phrase like “Give me five” or “High five.” Its meaning varies with the context of use but can include as a greeting, congratulations or celebration.
 
Google Groups: alt.fan.rob-bartlett
ROBIO on ‘The View’
RobShowNews
11/30/99
Not only is it ‘High Five Friday’, (which means even Ms. Walters will be ‘In the House’ ) but it is confirmed that The Robio will indeed be on ‘Joy’s Comedy Corner’ on ‘The View’ this Friday, December 3rd.
 
Urban Dictionary
high-five friday
A magical day, which kicks off the weekend. The predecesor of Super High-Five Saturday and Super-Dooper High-Five Sunday. Coined by a man by the name of Jason Ritchie and seen widely at music festivals, one will hear it screamed and be beckoned to give a highfive to this crazy fuck. The act of the highfive is spectacular and truly adds to the enthusiam and team sprit of a festival!
(...)
by Ralph Steadman July 15, 2006
 
Twitter
Jennifer
‏@Jennybean416
Palm Sunday, Bitchslap Monday, Tickle Tuesday, Wave Wednesday, Thumbs-up Thursday, High-five Friday… my hand will be exhausted by Saturday
5:44 AM - 5 Apr 2009
 
A Dash of Meg
HIGH FIVE FRIDAY
February 3, 2012
Today, I want us to celebrate.
Let’s celebrate our successes, accomplishments, and abilities.
     
A Dash of Meg
HIGH FIVE FRIDAY #19
June 22, 2012
Well, another fantastic week is complete! Friday is here and that means a High Five Friday celebration is about to take place!
   
Life’s Tidbits
High Five Friday {Vol. 1}
MARCH 28, 2014 8:00 AM\ NICOLE
(...)
What is High Five Friday? High Five Friday was started by a blogger named Meg from A Dash of Meg.  High Five Friday allows us to “take time to celebrate our weekly achievements, successes, and abilities. Within a week we accomplish so much, but forget to give ourselves credit for all that we do, so High Five Friday allows us to take the time and recognize these important accomplishments.”
 
YouTube
High Five Friday at Bonnaroo
Austin Smith
Published on Jun 18, 2014
Radiate Positivity
 
YouTube
High Five Friday #1
Zach Anner
Published on Apr 10, 2015
 
(Trademark)
Word Mark HIGH FIVE FRIDAY
Goods and Services (ABANDONED) IC 025. US 022 039. G & S: Hats; Sweatshirts; T-shirts
Standard Characters Claimed
Mark Drawing Code (4) STANDARD CHARACTER MARK
Serial Number 85727736
Filing Date September 13, 2012
Current Basis 1B
Original Filing Basis 1B
Published for Opposition February 19, 2013
Owner (APPLICANT) Johnson, Branden INDIVIDUAL UNITED STATES 1307 English Ave New Prague MINNESOTA 56071
Type of Mark TRADEMARK
Register PRINCIPAL
Live/Dead Indicator DEAD
Abandonment Date November 18, 2013