Top Definition
When an instant message (or text or chat) is displayed JUST as you have finished sending yours. Result is that your message is displayed out of sequence and/or you look plain stupid.
(10:05:10) Pat: Weather looks good for tomorrow.

(10:05:42) Pat: We could go to the beach.

(10:05:43) Me: We could go to the beach

(10:06:00) Me: Doh! chatclash.
by HighLeghLMW August 15, 2009

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