Meaning to be happy or excited in a sarcastic way.
Example 1 - I am so happy, I am farting rainbows

Example 2 - gee... your not having fun, because I am farting rainbows over here.
by kjj5hf October 27, 2009
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Felicia:"OMG I was farting rainbows the other night because of those fruit smoothies!"
Lakeisha:"OMG gurl, at least it wasn't a nasty one."
by Princess_Felicia March 14, 2016
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When someone is so head-over-heels in love with someone that they believe their own previously toxic flatulence has been magically transformed into something inordinately wonderful.
Ever since I first laid eyes on her I’ve been farting rainbows and unicorns!
by Dr Bunnygirl May 20, 2021
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Such a warm happy feeling inside over something utterly delicious or satisfying, extremely pleasant, fullness of self.
I am so happy that you, two, finally got married: I could just fart rainbows.
by Guido1 January 7, 2011
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To be so excited about something you almost shoot the gayest thing in the world out of your butt. Similar to pooping kittens.
I saw the cutest little puppy earlier and it made me shoot off several rainbow farts.
by plaidtattoo February 11, 2009
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Another term for virtue signaling. Spewing comments that indicate an idealistic personality on a mission ready to bombard message boards and social media with a perceived problem of which you don't fully understand the complications and nuances. You do however feel the need "to do something" about it and leave your mark for future generations in your ceaseless efforts to make the world a better place.
She kept rainbow farting comments on the message boards about social problems that mostly existed in her mind or only got it from hearsay and what the media reported.
by Erik-Jan Tytgat August 25, 2022
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Rainbow Farts happen when you end up eating too much colorful food like skittles and M&Ms to the point where you shit out farts that are rainbows.
*Jacob munches on some M&Ms*
Jacob: *FARTS*
Jacob: OMG OMG OMG I JUST HAD A RAINBOW FART
by Khagreytits September 8, 2014
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