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2 definitions by Sanathan

 
1.
Creative spelling of words using numbers, or purposeful misspelling, to signify leet status.
Twitter posts these days are increasingly using leetbonics.
by Sanathan November 16, 2011
 
2.
The TV episode previous to the one you are currently watching. Instead of saying, "on the previous episode", or "last episode", say, "yestersode"!
That contestant was voted off yestersode.
by sanathan September 24, 2010