1. sound as a roach : 十分健壮；
1. European freshwater food fish having a greenish back
Synonym: Rutilus rutilus
2. any of numerous chiefly nocturnal insects
some are domestic pests
Synonym: cockroach
3. street names for flunitrazepan
Synonym: R-2Mexican valiumrophyroperoofyforget me drugcircle
4. the butt of a marijuana cigarette
5. a roll of hair brushed back from the forehead