Yeah. We use "haha" or "heehee" or "hehehe." During online chat, though, we can use chatspeak abbreviations/words like lol (laughing out loud), rofl (rolling on the floor laughing), and lmao (laughing my butt off).

Yo ho ho and a bottle of rum.

lol funny

we laugh using jajajajaja (sounds like hahahaha)

Yes , most of people use hahaha way to laugh xD , and the spanish speaking countries jajaja