It means hahahahaha. In Spanish the J sounds like an H in English. You can laugh like this on posts to confuse people and/or make fun of Mexicans.
Meg: I'm going to shit so hard from these greasy ass tacos.
Tom: Jajajajaja!
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Jajajajajaja is hahahha in Spanish it just that they pronounce j's as h's like jalapeΓ±o (Hal- a- peen- yo)
Person 1:*tells joke in Spanish*
Person 2:jajajajaja
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You Spanish PennyWise why are you laughing in spanish
Someone: Hey look at this funny sub reddit meme!
another guy: JAJAJAJAJA
Someone: Bruh your not mexican your freaking Italian-
Mainly used in Roblox, "jajajaja ez noob lol" is a sentence mainly used by Spanish players in Roblox fighting games, it's used a lot to make people angry, or if people are mad. It means hahahahah! You really suck and you're super easy to beat! I am really entertained by your lack of skill.
LOL, I beat you! Jajajajaja ez noob lol. God, get good.
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