Loitering
The act of one standing around, with no purpose, what-so-ever. While having intercourse between their butt-hole and their thumb.
Example:
(Man standing around with his thumb up his ass)
Cop: HEY YOU STOP LOITERING!!!
Man: Screw you! (RUNS)
(Man standing around with his thumb up his ass)
Cop: HEY YOU STOP LOITERING!!!
Man: Screw you! (RUNS)