Something that is pleasing in a greatly amusing manner. Derives from the word fantastic, meaning fantasy-
like, only to exist in dreams or the imagination, and the accronym
ROFL, which stands for Rolling On the
Floor Laughing.
person 1: Say,
Pete, did you see that there's a banana hammock sale going on at the Salvation
Army?
person 2: Rofltastic!
person 1: That n00b
Olly went out with a transvestite he met online!
person 2: Rofltastic!