Meredith, when she is sober, is a pretty nice woman. 
She's got one kid, whose a hell raiser ("a horrible little latchkey kid", according to Dwight), but is always on the lookout for a man... even for an hour.
When everyone thought that the Scranton Branch was going to shut down, Meredith approached Michael, Kevin, Toby, and Jim and asked them if they wanted to sleep together one last time, as she remembered making some
sort of work-apocalyptic sex pact with someone. She also got loaded at the Christmas party and flashed Michael, who then took a picture of her topless, and who knows where that is now...
Meredith got hit by Michael's car in Season 4, but while she in the hospital, the doctors realized she had rabies. Apparently, a few months earlier, a bat got into the office, and Dwight trapped it
in a plastic bag on Meredith's head. The doctors were able to treat Meredith, 
but Michael took the discovery of her having rabies as absolution for hitting her with his car and cracking her pelvis... after all,
if she wasn't in the hospital, she wouldn't have realized she had rabies, right? Michael set up the 
"Michael Scott's Dunder Mifflin Scranton Meredith Palmer Memorial Celebrity Rabies Awareness Pro-Am Fun Run Race for the Cure" after he realized how very, very serious
rabies is... well, was... 100 years back. Once Meredith got out of the hospital, she had Jim sign her cast... which covered the entirety of her pelvic area. Ew.
Meredith recently almost got fired for an HR violation at work: she had been sleeping with a vendor in exchange for a discount on office supplies and Steakhouse coupons. I'll leave it at that. Suffice to say, the company felt that they could not turn down a discount on items when their business model was failing, and so she kept her job, much to the chagrin of HR.