1 definition by Spyduhmahn

Top Definition
An intense feeling of being lovesick, such a feeling you need to puke. In other words your so in love and missing someone you feel like puking without them. Puking Rainbows can take the form of crying, whining, or similar to word vomit
Man, Enrique hasn't been the same since his girlfriend left him, he's been puking rainbows all morning.
by Spyduhmahn December 08, 2009

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