People with no Irish ancestry who celebrate on St. Patrick's Day as if they are Irish.
What's my ethnicity? Since it's March 17 I'll have to say I'm Irish for a day. Ask me tomorrow though and I'll say Danish and Venezuelan for life.
by North Central Johnny June 27, 2009
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Day to celebrate craicboi mental and his best song ever : Irish Tupac. It’s celebrated on the 30th of February annually. Also known as International Irish Tupac enthusiasts day
Rory: I’m such a loser, when’s International Irish Tupac enthusiasts day again ?

Katherine: wow take the L. It’s on the 30th of February every year and it’s also called international Irish Tupac day

Rory: thank you , you’re amazing ! Here’s the W
by uefhejuxhske March 8, 2022
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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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The act of calling in sick to work after a night of getting royaly shit-faced hence the Irish Sick Day aka the Irish vacation day.
I know Tony was fucked up at the club last night he must be pulling the old Irish sick day.
by Mark McNamara March 18, 2006
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On October 24th, you can bully any Irish person with complete disregard for their feelings with no consequences.
Non Irish Person: “it’s october 24th, fuck you you fucking irish prick
Irish person: “i cannot fight back for it is national bullying Irish people day 😢”
by camillaprimissus March 17, 2022
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Greg - "wake up man you gotta go to work"
Bryce - "nah man I can't it's Irish Sick Day"
by Crap Factory November 19, 2008
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