Laugh hysterically (6)
I believe the answer is:
shriek
(Other definitions for shriek that I've seen before include "Utter high-pitched cry" , "Short piercing scream" , "Howl" , "Shrill cry or scream" , "Scream of pain or delight" .)
I believe the answer is:
shriek
(Other definitions for shriek that I've seen before include "Utter high-pitched cry" , "Short piercing scream" , "Howl" , "Shrill cry or scream" , "Scream of pain or delight" .)