A barely recognized but fairly common misperception that one’s fly is always open.
He suffered throughout his life with unrelenting illusions of unzippedness.
by Dr Bunnygirl June 28, 2020
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The photo of a man's cock, typically taken by a cell phone, that makes it appear larger than what it really is because there is nothing else in the photo as a frame of reference to indicate it's true size. This is typically a close up zoom of the actual member.
Girl 1: OMG! Your boyfriend's cock is huge!

Girl 2: No, that photo he texted me is just a cocktical illusion. If his hand were in the photo then you'd see that his jimmy is just normal size.
by hotmuffin July 19, 2010
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The leggings illusions is when a girl with no ass wears super tight leggings to make it seem as if she has ass when she doesn't. This makes the ass look big from a distance, and makes a man's mouth drool for dat booty. But when you get close or you get her home and taking them legging off, you realize that she has a small ass.

It's still sexy, but it's a lie.
Britney was so fine, she had a nice ass when I saw her walking around campus. Then I got her in my dorm, she took off the leggings, and I realize that she had a small ass.

I fell for the leggings illusion.
by RolphSemensDickOvensUWIDI October 12, 2011
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Refers to how it is difficult to tell the age of an asian as they always appear younger than they are. They have the illusion of looking young forever.
"Can I see some ID please?" - cashier
"Sure, but I'm 29 years old" - asian suffering from asian illusion
"Sorry, I thought you were under-age!" - cashier
" No, it's just the asian illusion" - asian suffering from asian illusion
by Princeout June 29, 2011
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1. To have the look that increases the fact that you look like Splice. 2. Side-swept bangs over one eye creating the illusion that your eyes are extremely far apart, like Splice. 3. An over-exhausted pose used as a default picture for scene/emo kids or creepy adults.
1."I'm really sick of this bitch doing the emo illusion in every pic, it's creeping me out dude."
by Applesxx July 25, 2010
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Noun: The answer one correctly guesses when, in fact, they acutally "pulled it out" of their rear-end.
David Copperfield is very skilled at entertaining us with optical illusions, whereas, John Kerry just as skilled with a Protoctical Illusion.
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A man you swear is gay, but later find out he has a girlfriend.
"I thought Jim was gay until I met his girlfriend, so it was all just a homoptical illusion."
by chauncey July 20, 2004
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