stall shy

When an individual is apprehensive or scared of using a urinal or stall due to the fact that other individuals are occupying adjacent urinals or stalls. As a result, if any attempt is made to utilize either, it will result in the failure of being able to urinate/defecate : stall shyness.

Larry attempted to use the urinal, but there was two other guys using other urinals. Bitch got stall shy.