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1.
In the case of an undesirable erection or a narb (no apparent reason boner), the meneuver done to hide such displeasures from the public eye. The move consists of glancing left, glancing right, then swiping the erection up, to be held by the elastic or waste of the pants.
Yo I got a huge boner in class, so then I pulled a left-right swipe so I could stand up and get my paper.

I went out in my hallway after I woke up and did a left-right swipe to avoid any awkward confrontations.
by RichV June 05, 2004