Top definition
n. Comes from "extraneous" and "definition". Refers to an entry on an editable website (such as Urban Dictionary) where the actual meanining of the word in question has been buried under the thousands of entries that reflect the opinion of the poster, and the argument against that poster, etc.
vb. To add a definition to an editable dictionary that does not add anything new but merely refutes or defends a previously posted entry.
Urban Dictionary is an extradef.

Emo is an extradef.

If it has more than two pages, it is probably an extradef.
by A_1_B_2_C______ October 10, 2006
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The vengeful act of crapping on a lover's chest while they sleep.

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