A womans ass hole. Or man's in jail terms. Can also apply to a womans mouth when all other holes are exhausted.
I fucked Kellie's snatch till it was totally raw last night, so I had to hammer it up her spare cunt this morning.

or

Her spare cunt was blown out after last night too, so I fucked the spare cunt on her face.
by Richter ass November 4, 2010
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To treat your kid like they're better than you rather than equal to or less than. To refrain from whooping a kids ass, even a deserved ass whooping.
Lindsay's mother and father spared her the rod because they thought she was special and didn't want to ruin her. They gave her everything she could think to want and turned her into a mollycoddle, but its not her fault. Blame her parents, they said spare the rod.
by Solid Mantis August 29, 2018
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The huge roll of fat that often times drapes off of a woman's frame because she is so fucking fat and/or drinks to much beer/eats too much pizza, tacos, enchiladas, pasta, or cake. It can be best seen on college girls wearing tight shirts which they intend on showing off their "hot bod," but actually end up showing some nasty flab going about the entire circumfrence of their mid section, or at this point more like mid country they can be so large .....
"Whenever Kara sits in a bathing suit she covers her stomach because she doesnt want guys to see that she actually has a humongous spare tire."
by Helayne January 30, 2006
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The guy you don't know. You don't know why he's talking to these girls, why he's in the pictures or why he's even in the building. He's "trying" and the only thing he is doing is blocking and distracting attention from you and your people. Chances are you see a spare guy every weekend. You just didn't know the definition.
Your meeting some girls at the club and they bring along their 1 guy friend. Hes hasn't been able to seal the deal and is now in the friend zone. When you meet the girls he is throwing salt in your game and wont let you get any of them alone because he cant do it himself. This is a spare guy.

by Halo Marques April 20, 2008
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A bro who happens upon every date with you and your girl, who is oblivious to boundaries, then sits in the the middle of y’all at the movies or any other possible romantic setting.
Boyfriend: I’m taking you on a gondola ride in Venice.

Girlfriend: Awe sweetie! I love you!

Later at the long anticipated gondola ride....

Boyfriend: Hey babe... Don’t look now...

Girlfriend looks up.......

Girlfriend: Are you shitting me?! You told the bro-spare!!!
by Thepubfucks January 27, 2019
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An oriental side ting who doesn’t answer back
“Go find a spare nip who will do what you want!”
by Joebanana April 1, 2022
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When a person is a member of a company, group, or in a relationship solely to fill the open vacancy; as if the only benefit they bring is blood for donation.
"You're not my friend, you're my bodyguard, make it past two weeks, I might learn your name, until then, you're spare blood." -Alucard, Hellsing Ultimate Abridged, episode 3.

"Andrew is our 'social media intern,' he can make copies or coffee, other than that, he's spare blood.
by J. Fillerin February 8, 2018
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