“Ask the Street,” says Danny, a veteran Manhattan garbage hauler. “The Street shall provide.” Danny pummels his new partner with semi-mystical sayings, advice, stories, and lousy jokes. Who is this new partner? A rookie, Marlowe, as different from him as she could be. That’s the entire cast ofThe Garbologists, a quirky, likeable, 90-minute two-person play by Lindsay Joelle and co-world-premiering at Philadelphia Theater Company through Dec. 5.