09/11/2009 AT 09:15 AM EDT
Casey Wilson is laughing off reports that she was fired from Saturday Night Live
for being too fat.
"I had an amazing time on SNL
, and these rumors are completely untrue," Wilson, 28, tells PEOPLE in an exclusive statement. "And to clarify, the issue isn't that I'm too fat, it's that I'm too phat. Can I get a WHAT-WHAT!"
Earlier this week E!
online reported that the curvy SNL
star – who joined the cast in 2008 and spoofed celebrities such as Rachael Ray and Jennifer Aniston
– got the boot after producers demanded that she lose 30 lbs. over the summer and failed to do so.
A rep for the show tells PEOPLE, "there is absolutely no truth" to the reports.