A "character" created by the imagination to keep a person company. Sometimes, it can be difficult for the person to recognise that their "friend" is not real; at other times, they can be recognised as not being real, but are still used to offer comfort and company.
When I was three, I had one imaginary friend. When I was thirteen, I had five.
by Peeves April 12, 2004
Get the Imaginary Friend mug.
An imaginary friend is NOT the result of mental impairment. Actually, those with an imaginary friend are frequently smarter than most people (two brains in one). It's someone who is always with you, thus you are never alone. He knows you, your greatest desires and your flaws. So he usually judges you... but also the others around you. He comes often when you feel alone and need some help, or need to talk but have nobody trustworthy. An imaginary friend is really helpful, I advise you to try ! But pay attention, if your friend is comic, to not laugh too loud. People could think you're strange, even if it is a good thing, they're not really tolerant.

PS : Never let someone tell you he is not real, “Of course it is happening inside your head, but why on earth should that mean that it is not real?” (JKR)
My imaginary friend is Sirius Black, so he never died and is ALWAYS with me.
by Sidocali February 14, 2016
Get the Imaginary friend mug.
A nonexistent girlfriend (not that internet service schtick). I have one of these. The pros far outway the cons. No dates to remember, no birthdays, so you can basically be a slob and get away with it. If you give her some interesting problems, she'll really be 3 dimensional. Mine's a kleptomaniac and a narcissist.
Mom: Where are all your pens?
Me: Bonnie must have stolen them.
Mom: Who the hell's Bonnie?
Me: Exactly.
by Long June 9, 2005
Get the Imaginary Girlfriend mug.
The concept that exists just to make people in Algebra 2 die of confusion.
"How does this pointless stuff that I'm not even going to use when I'm older even make sense? I just don't see how there can be Imaginary Numbers!"

(dies in class)
by NYC213 August 25, 2015
Get the Imaginary Numbers mug.
a living person who you talk to constantly but never see them.
i wish i could see my imaginary friend
by humhumhumhum July 27, 2010
Get the imaginary friend mug.
1) You might have one, two, or five of them. A few might be in trouble for raping an imaginary virgin or building an imaginary makeshift Meth lab.
2) An imaginary black guy
Hal-Your imaginary brother is in trouble.
Seth-The imaginary blood one or the imaginary black one?
Hal- The one you're coming with me to the hospital for, I don't know him that well.
by Solid Mantis September 22, 2017
Get the Imaginary brother mug.
A person or whatever it may be that you become friends with but no one else can see. The most common name for an 'imaginary friend' is Bob.
Person #1- I have 4 million imaginary friends named Bob, so we have to wait for them before we can go to the mall.
Person #2- Um, okay...
by BoB April 23, 2005
Get the imaginary friend mug.