[Crazy Jetty]

I don't recognize it, personally. But it looks like something MacFarlane would have sculpted and released in the spawn line.

Look the figure over for trademark stamps. That'll usually tell you the year the toy was released, and the company that produced it.
Every legal toy has such information molded into the sculpt somewhere. Usually on the back of a leg, or bottom of a foot. Somewhere not immidiately visable.