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A person hailing from the island of Spack, in the Atlantic Ocean.
Across the room from me stood a Frenchman, a Spaniard and a Spacker.
by Bowl June 13, 2006
Spam on a cracker

Spam + Cracker = Spacker
Man...I'm so hungry I could eat 600 fucking spackers! :D
by Tommyg_99 May 03, 2006
A hacker who is also a spammer.
Spammer + Hacker = Spacker
Omfg the n00b's turning into a real spacker now!=.
by Zxcs June 04, 2005