Shower Bong Effect 

When you fart in the shower and the water intensifies the smell.

The shower bong effect is when you rip an average fart in the shower and you almost have to exit because of the intense smell.

Shower Bong Effect by runbucky April 5, 2011

demo effect 

The fact of device working perfectly always except when demonstrated for an audience. Something unexpected that goes wrong only when someone else than just oneself is seeing.
Somewhat connected to Murphy's law.

Deal would have been easily closed but the machine developed a demo effect during introduction.

demo effect by Ristipiste December 4, 2010

Streisand Effect 

when someone decides to ban or censor something, and that attempt to make something go away, makes it even bigger than ever before, or ever planned.

dj danger mouse's gray album in which he remixed the vocals from jay-z's the black album and the beatles white album. when emi sent a cease and desist letter to danger mouse the internet community created an intense distribution campaign

Streisand Effect by bigposerhead February 7, 2005

Voldemort Effect 

Being fearful of naming someone or something. The phrase takes cue from the line associated with "Lord Voldemort" in the Harry Potter series: 'he who must not be named'.

The phrase was coined by British activist Maajid Nawaz in context of Islamism; analysts being fearful or reluctant to call out the ideology of Islamism as the underlying cause of Jihadist terrorism.

Left-liberals often succumb to the Voldemort Effect when discussing Islamic terrorism.

Voldemort Effect by StrikerXX September 5, 2015

gyro effect

The aftermath of a night of moderate drinking, then deciding it is necessary to eat a gyro in order to drive home safely… which has the effect of tasting that for the next ½ of a day after you wake up, whether slightly still drunk, hungover, or stone sober.

guy 1: i'll have a water.

guy 2: i'll have a PBR.

guy 1: dude, its 10am!

guy 2: sorry bro, got the gyro effect from last night. need to get the lamb and a nasty chick taste out of my mouth.

gyro effect by milkacow June 20, 2008

Khiabani effect 

When you paradoxically refer the current time, usually shortly after 12:00 am to "tomorrow", as it is still night and your mindset for tomorrow is the next morning but conventionally the day has changed, so you end up in a ridiculous, paradoxical statement like "It's tomorrow now"!
Named after Javad Khiabani, an Iranian TV soccer commentator who made the same statement in a match after 12:00 pm.

- When is the match?!
- Tomorrow morning
- You mean on Thursday?!
- Oh! No sorry! Wednesday! It's 1:00 am and already tomorrow now! That was a ridiculous Khiabani Effect!

Khiabani effect by Mazsch January 3, 2020

Mickey Mouse Effect 

When you have a special fondness for someone you meet while on vacation or a happy time in your life.

You have the Mickey Mouse Effect on many people, coming to Las Vegas and not seeing you is like going to Disneyland and not seeing Mickey Mouse

Mickey Mouse Effect by Diamond Slim August 13, 2019