1 definition by 5 second crush

When you're not initially attracted to a person, but then they do something that is attractive and you're attracted to them in the moment but then later on you don't feel the same way and you're not that attracted to them anymore.
girl: wow I didn't like him before but he's so cute!

1 hour later

girl: I feel nothing towards him. I guess it was just a 5 Second Crush
by 5 second crush December 7, 2015
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