I think it would be pica if you were eating bars of soap as opposed to just bitting them.
I think... and you have to fight those urges
I've had the urge to do so before, I don't know why lol
Check with your doctor to see if you have any deficiencies. Your body may try to make up for it by internalizing it from an oddball source.
well I swear ... one bite will nullify the urge