When the world has got you down and it's heavy on your shoulders.
"Oh man I woke up from last night with a racing stripe shaved into my leg."

"Oh man, heavy days."
by pearsnapples October 31, 2011
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An unofficial 'internet holiday' created by Fall Out Boy fans in 2006. The name comes from a misunderstanding of the lyrics in the song 'Nobody Puts Baby in the Corner' from Fall Out Boy's 2005 album, From Under The Cork Tree.

The lyrics actually state "the hand behind this pen relives a failure everyday". However, a fan heard it as 'heavy Irish pepper day's a February day'. In turn, the fan made a post on the Fall Out Boy messageboards and the idea for a "holiday" began.

In celebration of Heavy Irish Pepper Day is on February 4th. The fans wear orange, yellow, red or green clothing (pepper colors) and listen to FOB songs, watch videos, etc.

Whether or not the band is aware of the holiday is unknown.
"February 4th is Heavy Irish Pepper Day!"
by katie816 January 29, 2008
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A holiday created by Cyndirella (boardie) due to the misconception that some lyrics in the song "Nobody Puts Baby in the Corner" said "Heavy Irish Pepper Day is a Febuary day" and now Febuary 4th is Heavy Irish Pepper Day.
Happy Heavy Irish Pepper Day!
by The one who got Away February 9, 2007
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national heavy day is September 27th, you join jets dream world on this day and tell them how amazing heavy is,
Hey what is national heavy day?

national heavy day is when you appreciate heavy..
by Wumpus2021 August 2, 2021
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When you’re on your rag and it’s the heavy flow days where you always stain your panties.
Hey girl do you have an extra large tampon? I’m in my heavy days.
by Brizna B January 18, 2019
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The best possible day you could ever have, because you're in the greatest aviation unit in the world
Have a Heavy Cav Day Sergeants.
by Natar June 2, 2017
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