n. (pronounced vaj-TA-stick, with the short A sound as in apple)
A journey that involves exploring the world of vaginas.
Also, a clever title for a porn film (as used in the film "Superbad")
ex 1) Dude, I'm going on a vagtastic voyage at the sorority tonight!
ex 2) Yo man, I just whacked off to Vagtastic Voyage
When a male tucks his dick and sack between his legs making it appear as if he has a vagina.
Chase was curious as to what a vagina might look like so he embarked on a vagtastic voyage.