Canonically, the Riker Maneuver is a tactical maneuver completed in the movie Star Trek: Insurrection, which is the last of the Next Generation films. But in trekkie parlance, the Riker Maneuver refers to the way that Jonathan Frakes would swing his leg over a chair to sit down--a practice that the actor didn't know was notable until years after the end of the series.
In this AI-generated video by NetDystopiaMusic, Captain Picard summons Commander Riker to a private meeting in the captain's ready room to address complains about how members of the crew are experiencing these close encounters with Riker's masculinity.
-via Holodeck Four