"The Lion King" trio
I believe the answer is:
hyenas
'the lion king trio' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hyenas that I've seen before include "Wild animals, their howl sounds like laughter" , "their laughter is notorious" , "Dog-like animals that sound as if they laugh" , "Flesh-eating dogs with laughter-like howl" , "Dog-like animals of Africa" .)