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Someone who performs the re-writing of some coding routine.

Also, general derogatory term for anyone, for any reason.
"I just spacked a whole bunch of data just then"
"Ooh, you're such a munge twaddler!"

Or

"Why me? WHY ME?"
"That's 'cos you're a munge twaddler"
by rymix June 25, 2004
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