Ok this is a rather long post from Dan Druff. I am only posting the parts relating to Mdawg. But have linked to the entire post below in case anyone wants to read and be sure I didn't subjectively cherry-pick. I am highlighting a few words and phrases I find important.

Originally Posted by Dan Druff View Post
Okay, I read this whole thread.

What a mess

Here are my conclusions:

With that said, there's no question that MDawg has been an obnoxious braggart, and has rubbed a ton of people the wrong way. There's something missing from his stories. Either they're fabcricated, grossly exaggerated, or largely incomplete. In any case, coming onto a gambling forum full of APs and acting in such a way is also bad form, and it angers people. This is especially true because the internet is so highly saturated with gambling phonies, everyone's bullshit detector is set off the minute anyone brags about any winning beyond the norm. You know what they say... extraordinary claims require extraordinary evidence. MDawg has never provided this evidence. The frustration with him is justified.....

....The funny thing is that MDawg could have been mildly interesting if he just stuck to "I'm a high roller, here's my trip reports" sort of posts, and just kept quiet about his results. Not all of us get to see the high end suites or other spoils of being a casino whale. That stuff is interesting, even if it's an overall loser posting it.

Do I think MDawg is winning? No. I think he probably has some money (maybe not as much as he claims), likes to gamble, likes the high roller treatment, and wants to present himself as a guy who gets all this AND wins, rather than just a chump who is getting lavish treatment because he's dumping money.
https://vegascasinotalk.com/forum/sh...403#post127403

While Druff did not use the word Lie or lying, he did use fabricated, grossly exaggerated, or largely incomplete. I don't know how much closer you can get to saying lying.