You are taking it far too literally. It means deriving pleasure from the pointless stroking of each other's egos to no productive end. The metaphor substitutes penis for ego, which is already a fairly closely related concept for a lot of guys in the first place.
That said, you're right. Both kinds of circle jerk are gross and weird.
It's gross and weird and no, I don't find agreement to equal cock stroking.
You are taking it far too literally. It means deriving pleasure from the pointless stroking of each other's egos to no productive end. The metaphor substitutes penis for ego, which is already a fairly closely related concept for a lot of guys in the first place.
That said, you're right. Both kinds of circle jerk are gross and weird.