The feeling that is onset by an instance when you and your signifigant other have a moment of intense love. This feeling can be onset by cuteness, intense eye gazing, and/or but not limited to being absolutely head over heals in love.
I just had a love boner when you looked into my eyes. I just had a love boner because your so darn cute.
When a male becomes erect by the thought of or by being told that his loved one loves him.
Sally: "I love you so much baby."
George: "You just gave me a huge Love Boner."
Sally: "Oh yes, I can feel that!"
noun-a boner you have for someone who invokes a deep passionate feeling within you, sexually or non-sexually.
I have a love-boner for Simon Pegg. Everything he does is love-boner worthy.