A festival of testicals. Synonymous with sausage fest. It means a gay orgy or a large concentration of males or male genatalia
"Dude that catholic church is such a testival"

"There's nothing but a testival at gay bars"
by White Frank Black September 03, 2006
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A Testival is when you have 2 or more test in one class period.

Because in that case it would be a festival of tests.
Hey today in Mr. Peters class were going to have Self Exam Testival and next week were going to have 2 Testivals.
by jedediah montgomery March 02, 2008
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