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1.
A student who gets good grades while engaging in regular recreational drug use...often used for college students who study during the weekdays and party hard on the weekend using coke/amp/Ecstasy or any type of uppers

Also can refer to someone who uses uppers such as Adderall or Speed to stay up studying
person 1: "I thought Kartik was a nerd because he's always in the library"
person 2: "nah man, i saw him at a rave on saturday rollin hardcore, he's definitely a crackademic"

person 3: "how does Ray pull all those all nighters and get such good grades?"
person 4: "dude he's such a crackademic, he pops addys to help himself focus and stay awake"
by kurthudson November 01, 2009