a horse that is not trained to allow riding and and responds to riding in a dangerous and unpredictable manner (borrowed by cowboys from a Spanish word meaning rough or coarse)
The bronco threw the would be cowboy to the ground.
by The Return of Light Joker November 03, 2008
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when you're doin it doggystyle reach around, grab the girls tits and yell some other girls name. it'll feel like ur on a bronco when she tries to get you off.
by brian December 22, 2003
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The bronco is performed when a couple is having sex doggy style, made popular by the T.V show Dexter. When the bottom is getting really into it, you hold onto their hips and say another person's name. The bottom then will try to "buck" you off, much like a horse.
Conversation about Bronco, taken from Dexter:

Angel Batista: She's a butterface.
Dexter Morgan: What's a butterface?
Angel: You know, compadre. She's got a hot body - but her face.
Dexter: Oh.
Masuka: How great would it be to pull a bronco on her? Yeah? Yeah?
Angel: You do it doggie-style. Right? And just when she's getting into it, you grab her by the hips, and you yell another woman's name, and, bam, you're riding her like a bronco, because she's trying to buck you off.
by DurkDurkinson August 11, 2015
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A bronco is, when doing a chick in the ass, you grab her tits, bend over and whisper in her ear that you have AIDS. You then ride her for as long as possible.
Your mother's bronco really got me off.
by TrueIrony March 23, 2006
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Sad excuse for a football team. Full of fat lazy boof heads and sneaky cheats.
Love to perform sexual favours for refs for points and shit calls.
Can't believe their supporters can actually claim that shit
How many broncos are sucking ref doodle for this win?

The broncos new recruits in the officials colours were well worth the money...
via giphy
by Milkshake April 21, 2017
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sexual position, consists of man taking the lady from behind. Right before the man finishes, he tells the lady "you are the ugliest, fatest whore I've ever seen" the man then tries his best to hold on
Dude she freaked when I pulled out the bronco
by dirthole December 11, 2002
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The bronco is a sexual encounter that involves a guy, his girl and all of his buddies. Before the encounter, 4-8 of the buddies hide in closets and other places in the room the encounter will occur. The couple enter the room and go at it. When the girl is on top, all of the buddies jump out, turn the lights on, and start cheering like it's a rodeo. The object is to get her to stay on for 8 seconds.
That bronco you pulled last night was the most fucked up thing I've ever seen!
by lipotking May 10, 2004
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