I think my online voice is pretty similar to my IRL voice, probably the biggest thing is that my accent doesn’t come through
I’m from outside of Philly and while I don’t necessarily have the most strong, stereotypical accent, I do have a lot of the typical linguistic quirks, but a lot of it tends to be pronunciation differences. As far as actually words and phrases, I use "jawn” and “youse” or “youse guys” a lot less online.
For example I might grab myself a cup of cawfee or an ahrnge juice and a begel for breakfast, before I head down to the crick to do some fishing. Before I go I’ll leave a note for my wife telling her when to expect me back, but I can’t find a pen so I use some crowns. Then when I get back I’ll warsh off my boots with wooder from the spicket outside, maybe wipe them off with a tal, and put them inside by the rattyator to dry off, while I sit down to watch the iggles game (go birds!) Maybe I’ll hit up my friend, and ask him “Jeet?” and he’ll reply, “No, jew?” so I’ll stop at Wawa and tap MAC so I can buy us some hoagies, probably paired with a lager, and maybe get some wooder ice or maybe some ice cream with jimmies for dessert.