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The cardiac equivalent of a penile erection. This is often caused by an overabundance of love felt which resulted from an emotional stimuli, rather than a physical stimuli which is often the case with a penile erection.

In other words, your girl (or boy) does something so cute/thoughtful that you feel a surge of swoonfulness, often causing a rush of blood to your chest and an overall feeling of being wooed.

My girlfriend gave me a hockey t-shirt today which gave me such a heart boner.
by LawSchoolNerd October 08, 2008
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What happens when you dig someone, and it's more than just a physical attraction, it's a boner of the heart.
When J. wrote about how she was ready to fall in love, B. said he got a heartboner because, well, they kinda dig each other.
by monkeepie May 14, 2009
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To be overly joyed and extremely the chest.
Chi: I just saw the dark knight.

Aadhie: so?

Chi: I...I..I got a Heart-boner!

Aadhie: What the crazy?...What did you get?


Aadhie: dontuuchmee!
by michael chi August 19, 2008
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When an individual does something nice for you or gives you a compliment.
Usually used with close friends and family. Can be used in all different scenarios.
Friend 1: So I got you some pizza because I know you have been feeling pretty sad lately.
Friend 2: You have given me a heart boner. Thank you!!
by sandyroses June 21, 2018
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The fluttery feeling you get in your chest when someone says something that makes you just wanna fuck em
"I love you" is an example of something that may resent in an instant heart boner
by Thefatty May 23, 2017
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when someone says something really cute and your heart starts beating fast. normally causes a rush of blood to your heart just like a normal boner.
me: omg i was talking to austin last night and he gave me the biggest heart boner.
lexie: omg you guys would have the cutest babies
by baml1234 April 21, 2019
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