I want something tragic? That’s ridiculous (4,4,2,5)
I believe the answer is:
dont make me laugh
'that's ridiculous' is the definition.
('don't make me laugh' is said in disbelief)
'i want something tragic?' is the wordplay.
I cannot really understand how this works, but
'i' could be 'me' and 'me' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for dont make me laugh that I've seen before include "You must be joking!" , "Weak comedies affect me so" , "come off it" , "Bad jokes" .)