From The Collaborative International Dictionary of English v.0.48 :
Roofy \Roof`y\, a.
Having roofs. [R.] --Dryden.
[1913 Webster]
From 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]