2 definition by The Awesome Armchair

Top Definition
A combination of rockin and fantastic.
"That is one rock-tastic trench coat."
by The Awesome Armchair March 13, 2006

Mug icon
Buy a rock-tastic mug!
adj. really, extremely. Stronger version of flippin.
Wow, your beard is backflipping amazing!
You're backflipping right it is!
by The Awesome Armchair November 01, 2005

Mug icon
Buy a backflipping mug!