Maybe it's just a primitive urge.

Forcefully, he suppressed the primitive urge.

Something gentler and much more subtle than the primitive urge to procreate-and infinitely more complex.

Oddly enough, he felt quite certain that Modesty and Willie did not share his primitive urge for vengeance.

It releases a primitive urge that lies dormant in our civilized selves.

Her obvious skittishness over his advances had brought out the primitive male urge to chase fleeing prey.

Driven by a primitive urge to prove her pledge, she set him free from his bondage and dropped to her knees before him.

It appeals to childhood memory, a sense of fantasy and a primitive urge to see food as something to play with.

Indeed, "for most analysts Freud's idea of a primitive urge towards death, of a primary masochism, was...bedevilled by problems".

He merely obeyed the blind primitive urge to run - run - run until he fell exhausted.