Related Clues:

• Psychic energy, to Freud
• A strong impulse
• Strong desire
• See 94-Down
• Freudian subject
• Walt Whitman's ''procreant urge''
• Freudian concern
• Freudian concept
• Primitive drive
• Concupiscence
• Primitive urge
• Lusty drive
• It may be hard to resist
• Id output
• Topic for Dr. Ruth