The Hef Effect 

Similar to symptoms of being bipolar. The effect causes changes in a person's mood, energy, and ability to function.
While not being as serious as the latter, this tendency may induce confusion to others and maybe even arguments.

Michi: How are you, Shiny? :)
Shiny: I’m doing good! How are you, Michi? :)
Ben: Hey, Michi! How are you?
Michi: Shut the fuck up, Ben. I didn’t ask you.
Shiny: Is this the Hef effect?

The Hef Effect by Shinoaki September 2, 2021

What the heff 

When you wanna tell ur mates subtly that there’s a heffer nearby.

“She was standing over there and I was like what the heff?”

What the heff by Bigjuicyheffer December 6, 2021

The Greg Heffley Method 

For when someone takes the least logical course of action when confronted with a problem, and then later expresses confusion when the repercussions for taking said action are enacted upon them. Coined after Greg Heffley, the protagonist of the Diary of a Wimpy Kid franchise.

His complete lack of self awareness and common sense must mean he takes the Greg Heffley Method to heart.

The Greg Heffley Method by meatball meatball April 14, 2017

hefty the deeg 

Hefty the deeg (also known as Hefty the dog or Rover if you want to get technical!, and is the head of the religion known as DEEGISM! in this belief the only thing you need to do is feed the dog known only as hefty!) hefty is the absolute 0 of weight. it cannot be surpassed. and will always have a bigger weight than any other dog. he is a fat deeg. so deal with it!

wanna go to church?
no thx! im a deegist!
what is deegism?
its where you praise hefty the deeg
ohh really? can i be a deegist?

Rover is quite hefty eh?
he be quite a hefty deeg
the dog is pretty fat

hefty the deeg by Per Møller Sørensen November 26, 2007