Friday Effect 

When you're with a new guy that is clearly into you, tags you in photos and videos having fun together, and fuck boys and guys that were too stupid to figure out their feelings come out of the woodwork for a second chance.

She only had eyes for him, and was clearly annoyed with The Friday Effect.

Friday Effect by fyrbal65 October 18, 2018

The 'Casual Friday' Effect

When one person, or a small group of people, abuse or break a code, rule, or law, which in turn ruins privileges for everyone, both directly and indirectly involved. Shoplifting, unnecessary texting and phone calls while driving, and people making bombs out of their fucking shoes on airplanes cause the rest of us to suffer on a daily basis from The ‘Casual Friday’ Effect.

Example 1: From The Office episode “Casual Fridays.”

Toby: “Casual Fridays are canceled… There’s not a single appropriate outfit in this whole (office) except mine, quite honestly.”

Toby canceled Casual Fridays after Meredith wore a dress that was too small, exposing her breast (and then some) when Toby suggested ‘pulling it down a touch.’

Example 2:

Girlfriend: “What took you so long?”
Boyfriend: “Ugh. I had to buy refills for my MACH3 Turbo.”
Girlfriend: “I know, right? I usually have to wait about fifteen minutes for someone to unlock the case at Target when I need more Britney Spears’ Curious. Damn The 'Casual Friday' Effect!”

The 'Casual Friday' Effect by marshmallowgirl May 1, 2009

Friday Night Funkin' Effect

A domino effect caused by Friday Night Funkin' that causes all the pedophiles and racists to head to another popular community and partake in their Epstein Activities there.

I'm so sad Baldi's Basics went through the Friday Night Funkin' Effect, it had so much potential for greatness.

Friday Night Funkin' Effect by fberibbop March 5, 2024

Effective Last Friday 

Term used to refer to someone who has been fired from their job.

Person 1: Where's Ed? I haven't seen him.
Person 2: Oh, you didn't hear? He's an Effective Last Friday.

Person 1: Bummer.

Effective Last Friday by Bill Tompkins September 11, 2010