Top Definition
1.) Someone who is constantly on you mind. Someone who means a lot to you, or who you are possibly involved with, but they do not believe you care for them for whatever reason.

2.) A very frustrating/konfusing person who makes your life harder, but who you cannot seem to stop loving.

ex: 1. an insecure girl/boyfriend.
2. A elderly person/parent.
- "dude, didn't you say she would meet me here?" "She was but we told you her to leave, she was a pain, and you know she's a fucking dayglow heartbreaker." "fuck i know, but i still miss her."
by judy stevens March 18, 2006
5 Words related to dayglow heartbreaker

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