We use to paddle or push pole john boats up guts to flush out and shoot Mallards which seem to hide on them everywhere.
From the context of this post, it seems quite obvious to me that Jon wasn't referring to a street in Valletta, Malta.
Both definitions may well be correct, but the context determines which one applies.
For instance, a "Ball Bearing Mouse Trap" could be a very efficient, near frictionless, mechanical device for catching little brown rodents, or it could be a "Tomcat" depending upon exactly how the phrase was used.
