The ultimate way to describe something. When one word just isn't enough to tell people how great something is.
Last night was so MARVTASTIC I woke up in my bed without clothes, and I have no idea how I got there!
by Sequoia Ricardo July 31, 2011
Marvelous and Fantastic.
My day was marvtastic!
by m. night. schbablalba March 25, 2008