David Dobrik's friend Dom made this word up in a vlog David posted while talking about condoms, he was trying to say the word effectiveness, but said the word effectency.
David: You want your own condoms
Dom: That's right

David: That doesn't work right?
Dom: Hahaha, zero percent effectency
by misterwhyman January 19, 2019
Get the effectency mug.
The aftermath of a night of playing sci-fi role playing game Mass Effect or Mass Effect 2 for the Xbox or PC. This is usually the result of playing more than 4 hours at a time or playing until the sun rises. Symptoms include falling asleep at work or just being disoriented throughout the day. Can alter sleep patterns and cause slurred speech. If this pattern of late night gaming persists it could lead to altered perceptions of reality where you want to make decisions like Commander Shepherd or make constant references to the game in conversations with people who have no idea what you are talking about.
Example 1
Guy1: Hey man I tried to call you around 2pm why didn't you answer?
Guy2: Oh sorry I was suffering from Mass Effect effect and was still sleeping

Example 2
Guy1:Hey where were you last night?
Guy2:Oh sorry I was out with a friend you don't know
Guy1: (grabbing his shirt and slamming guy2 against the wall) Why don't you stop jerking me around and give me some answers
Guy2: Whoa relax "Commander Shepherd" I think you're suffering from the Mass Effect effect

Example 3
Guy1:Man my girlfriend thinks about sex more than most guys do, I swear she's part Asari!
Guy2:What the hell is an Asari?
Guy1:Or sorry man, I'm suffering from Mass Effect effect
by Changus Kahn February 2, 2010
Get the Mass Effect effect mug.
A lazy writer's fill in for the word "affecting" with emphasis put on cause and effect.
How is Cheeto's diplomacy, or rather the lack thereof, effecting the standing of the USA in the eyes of people in other countries?
Get the Effecting mug.
Due to the Mandela Effect which was popularized in 2010 people discovered Nelson Mandela was actually alive and did not die in prison in the 1980s. He later did die in 2013. Because the Mandela Effect is more commonly known than the effect's namesake, many people believe he is still alive.
Nelson Mandela actually died in 2013; you are the victim of the Mandela Effect Effect.
by David Sweet November 20, 2019
Get the The Mandela Effect Effect mug.
When someone discusses an amazing game around you, giving you the urge to play said game
Pete: Oh I always play as Male Shepard in Mass effect. So I can bone Tali.

Sam: aw shit. Now I’ve got the Mass Effect effect.
by Pogoextreme June 13, 2018
Get the Mass Effect effect mug.