The Collaborative International Dictionary of English v.0.48:

Roofy \Roof`y\, a.
   Having roofs. [R.] --Dryden.
   [1913 Webster]

WordNet (r) 3.0 (2006):

roofy
    n 1: street names for flunitrazepan [syn: R-2, Mexican
         valium, rophy, rope, roofy, roach, forget me
         drug, circle]