"Very funny" (2,2,2)
'very funny' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for hilarious that I've seen before include "Extremely amusing" , "Louis' hair! (anag)" , "Priceless!" , "Uriah's oil (anag.)" , "A scream" .)
(Other definitions for uproarious that I've seen before include "extremely funny" , "Very noisy (and funny?)" , "Side-splitting" , "hysterical!" .)
(Other definitions for haha that I've seen before include "Laugh" , "Ditch" , "The sound of laughter" .)
'very funny' is the definition.
(I've seen this in another clue)
This is the entire clue.
'very funny' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for side-splitting that I've seen before include "Producing great mirth" , "Hilarious" , "Extremely funny" .)
(Other definitions for riotous that I've seen before include "Wild, disorderly" , "Involving wild behaviour" , "Behaving wildly" , "Boisterous and unrestrained" , "Unrestrained like crowd running amok (7)" .)