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A plastic air filled doll for someone to have sexual intercourse/anal sex with or receive a blowjob from.
Chad : Oh Kiersten you don't know how much I would love to smell your hair, caress your breast's, stick your mouth around my dick and pound your pussy once again!
Kiersten : Why don't you just get a Blow Up Doll and leave me alone!
Chad : I would but the wifey don't want the extra company in our bed!
Kiersten : You are fucked in the head get some help!
Steve : Hey guy's like my new Blow Up Doll her name is Judy!
Chad : And you think I'm fucked in the head?
Kiersten : Ok I'm sorry you and Steve are fucked in the head!
by SlopNChop August 15, 2017
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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a life size thin plastic doll filled with air used for male sexual conquests. Specifically in things an average female would find offensive.
"I had a fight last night with my blow up doll, but I think I can patch things up."
by Nick1122 November 09, 2006
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the cheap substitute for a date, usually considered better in bed because they lie perfectly still and never get their partner and them selves caught by moaning loudly.*note biting the blow up doll on the shoulder during sex is not advised due to the chances that u will pop ur "partner"*
Instead of dating real girls Jason took to sleeping with blow up dolls.
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(n.) 1. A synthetic humanoid doll used for simulating copulation or other sexual acts.
2. A man who gives it up to everyone and his brother while in prison. (See also blockhead and buttslut)
"Derek did a stretch in Chino a few years back. I hear that guy was a blowup doll in there." (Taken from American History X)
by Chagrin94 August 10, 2005
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Is a female, air head who has no other purpose but 2 be used by men for sex.
Guy: "Wow that girl is such an airhead"

Girl:"Yeah, she sleeps with every guy she can find."

Guy: "What a blow up doll."
by Kit_13 September 09, 2009
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A plastic device (male or female) that roystee uses to satisfy his sexual desires when prostitutes are unavailable.
Roystee said, "How else can a fat fuck like me get laid?"
by Dr. Phil December 20, 2003
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