National Beat Up Matthew Day is on April 20th and is designed to have a day to beat up your local Matthew (for whatever reason that may be)
Oh it's National Beat Up Matthew Day, I can finally beat up Matthew!
by silly goofy man August 30, 2022
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september 20th is shut up thomas day 2! where everyone in the world named thomas has to shut up!
thomas: hey!
me: shut up
thomas: what?
me: it’s september 24th, shut up thomas day 2!
thomas: oh yeah...
me: SHUT UP
by adorable6d September 12, 2020
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An question replaced "Hello" or "Hi" as the most popular form of casual greeting.
And the answer is from Chinglish, means "Study hard and make progress every day"
"What's up? Day day up!" example:

Person 1: What's up?
Person 2: Day day up!
by DWang2k August 11, 2014
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masturbation before hitting puberty. your body doesnt produce sperm yet so youre not shooting any semen during orgasm, hence not having to "clean up" any jizz after youre done.
I started jerking off when i was 8 years old. I enjoyed no clean up days up until i was 12 yrs old.

Goddammit, I didnt start jerking off until high school. i missed out on no clean up days.
by ronnie_e September 23, 2009
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A "hood up day" is a phrase used to describe any day for which:

One's physiological state is less than preferable on awakening.

AND the course of action taken to rectify this situation is to conduct the daily routine in a hooded sweatshirt with the hood of the aforementioned sweatshirt up over one's head.

causes for a hood up day may include: flu, swine flu, man flu, female "tummy aches", TVOD, GFDI (girlfriend disengagement illness), BFDI (boyfriend disengagement illness), embarassment, lazyness, depression, cock blocking, WBCFS (work backlog chronic fatigue syndrome), FPS withdrawal syndrome, being mauled by a bear, failing an exam, rape, car sickness, realisation of lack of funds, watching "marley and me", bad night's sleep, no night's sleep, post mid day nap dizziness, dehydration, hunger, bad hair day, failure (all forms) and rejection

However the most common cause of a hood up day is the consumption of copious ammounts of alcohol the previous night, resulting in a catostrophic hangover.
Example 1 (as an exclaimation, and an explaination)
man 1: oh, hi steve i was wonderi...
man 2(interupts): HOOD UP DAY!
man 1: ok maybe later.

Example 2 (used in a phone convesation)
girl 1:hi
girl 2:oh, hiya jen
girl 1:seriously becca, you have to come over and make me feel better i'm having a massive hood up day
girl 2:i'm on it i've got the little mermaid on dvd, but you need to decide, cookie dough or phish food
by pigaloo November 14, 2009
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