To have an intense drinking,pill popping,crazy ass party during the day. Usually a bad idea because by the time night comes you're vomiting everywhere and can't sleep. But at the same time its fucking awesome!
Dude,are you down to day rage at Rachels?

I day raged too hard so i'm puking everywhere and can't fucking sleep.
by supacrzyazn December 26, 2011
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The act of consuming mass quantities of alcohol during the daytime - e.g. the hours between waking up and roughly 5pm.
E: "Dude, what's up?"
J: "Duuude, I'm so hammered!"
E: "It's 5 pm, man - didn't you go to work today?"
J: "Naw, called in sick. Me and Brett have been day raging over at his place since like 10am."
E: "Well, I guess you can't drink all day long if you don't start in the morning."

"The beer I had for breakfast wasn't bad, so I had one more for dessert." - Johnny Cash, 'Sunday Morning Coming Down'
by ikillbozo December 6, 2010
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to drink, party, and in general rage during the day. This is a more dedicated form of day drinking. Day rages usually end in the evening with the rager passing out, throwing up, or being lost in their incoherent state. This, however, does not happen to people who drink like a boss. These people turn their day rage into a classic rage and generally continue drinking into the night.
"Dude, exams just ended, what do you want to do tomorrow"

"We're all going to Kenny's place to day rage, we got enough booze to go all night and an oz to smoke up"
by (whitegirl)wasted May 12, 2012
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