1. Bellona's Bridegroom
Macbeth is called this in the early battle scene descriptions.
Bellona is an ancient goddess of war, so her husbanc would be a god of war. Because Macbeth has shown great skill in battle, he is referred to as Bellona's Bridegroom
Golgotha is used to describe the bloody field upon which Banquo and Macbeth have fought. Golgotha is the Biblical name for the place where Jesus was crucified. The bloody implications of both are compared here.
3. Hyrcan Tiger
Macbeth asks whether he has the courage of a Hyrcan Tiger when he is confronted with the gruesome ghost of Banquo, whom he has just had murdered. The Hyrcan Tiger, from the ancient land of Hyrcania is known for its large size, boldness and ferocity. It is now extinct.
4. Perfumes of Arabia
Lady Macbeth asks if all the Perfumes of Arabia will sweeten her little hand when she is going crazy from guilt. She believes her hands to be covered in an smell of blood. The perfumes from ancient Arabia were believed to have magical powers.
Macbeth and his lady are washing up after the murder. Macbeth asks if all of Neptune's waters can cleanse his hands. Neptune is the god of the sea and controls the waters.