when a person squats against a wall and shits in such a fashion that the feces slide down the wall and come to rest slumping between the wall and floor like a rag doll.
Geoff left a big stinky wallflower at the white house after President Obama's inauguration speech.
by BEST ACID TRIP EVER! December 23, 2012
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Decorating ones wall with frail emo children in a decorative manner.
X: hey what are you doing tonight?
Y: I was thinking about going out to find some wallflowers so I can do some wallflowering tonight. Wanna help?
X: no, I'm good.
by Sq33k December 7, 2010
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That person at a party who dosn't talk to anyone or anything, (s)he just stands there, watching, being antisocial.
Look at her, she is SUCH a wallflower.
by justyournormalunnicorn January 12, 2016
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Millennial-"Wow! Look at that bright ass flower."

Boomer-"Actually that's a wallflower"

Millennial-"Ok bommer."
by WyattTheFaggot January 5, 2020
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A guy/girl in the mostly early teens, that attend music shows (mostly Hardcore) and do not engage in any hardcore dancing or get into the show at all. Most of them find a remote place in the venue with a group of there friends and wont go to witness the band at all. Are usually criticized by other people attending the show for paying to sit in the corner.
dude, fuck them wallflowers back there. Why would you even come here if your going to be like that!?
by big black dude February 26, 2006
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Primarily, a basic wallflower who displays a general persona of demure incapability, but is in fact, one of great physical and technical prowess. Generally possess' a vast amount of unheralded, unseen power and go out of their way to be meek and unassuming, at least until a dramatic confrontation of any kind occurs in their vicinity. Whenever any sort of oppressive or aggressive humans (Bullies, jerks, thugs, etc.) are near by and active, they will feel an unholy compulsion to leap into action, screaming and laying waste to all who oppose them with their incredible skills, simply to interfere in the situation and thereby feel that they've done something significant. After they have annihilated any and all participants, they will return to their previous passive state.
Don't beat on Mike; He looks like a nerd, but I hear he's, like, an avenging wallflower.
by Raphe and Erik Wojik November 5, 2006
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When you take a quotable book and make a movie adaption and then white girls in their flocks watch it and quote it till it is exhausted (other activites include writing the quote on various surfaces and places and uploading it to instagram, making galaxy gifs with the quotes, getting cliched tattoos, etc).

The term is dubbed so due to the effect on teenage girls everywhere after the Perks Of Being A Wallflower was adapted into a film 13 years after the release of the book.

'The Fault in Our Stars' by John Green is likely to go through this effect
Example 1:

Kelly: I just got my new tattoo!
Scott: Oh cool, what of?
Kelly: Oh it's one of those sideways 8's and it says 'In That Moment, I swear we were Infinite'
Scott: wtf dumb hoe

Example 2:
(This hasn't happened but it will, I'm sure)
Jenny: Oh I didn't know you smoked you should probably do that outside though
Hannah: I don't smoke. It's a metaphor, I put the killing thing in my mouth but I don't give it the power to kill me <3
Jenny: ???????? *confused because wtf and how did she just do an internet heart in real life*
Hannah: It's a metaphor~~ <3 Augustus Waters <3

These are both examples of The Wallflower Effect
by omgitskebab May 12, 2013
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