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8.
when laughing a lot of people on the internet use the words jejeje or jajaja.
People replace the H's in hahaha with a J which i maes it jajaja.
This is getting very popular on chat programs such as ICQ, MSN or AOL.

jajaja pwns
"look over there jacob, that cat just fell off the bed and it broke its tail JAJAJA! JAJAJA! JEJEJE!"
by James Bryant December 29, 2004