The female Jim Carrey
Probably the closest I've seen in recent times. I didn't enjoy Spy that much, but when McCarthy does one of her quirky characters, she's pretty good. Jim Carrey's movies weren't very well received either, I remember the first Ace Ventura actually tanked, before people started appreciating his style of humor. People who hate McCarthy shouldn't even be anywhere near her movies anyways.
I'm really surprised it only has 19% on RT, and they gave Trainwreck 85%, which I hardly ever laughed. There were some scenes that I thought might've gone too far, but that's the thing about cheap immature humor, is that they keep pushing the boundaries that eventually something will cross and make people cringe. Anyways, not a bad way to spend my hour and a half.