Top definition
An unusually large amount of semen stored in a man's body due to lack of ejaculation
I haven't jacked off in weeks. I'm backed up.
by Mudesi December 23, 2004
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2
Unable to leave loaf
I ate a whole block of cheese and now I'm all backed up.
by MikePBG November 08, 2003
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3
That teacher, he be backed-up.
by Strongboy July 13, 2008
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4
adj. strong or musculer
by Ghetto Fab July 26, 2003
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