Wave card (3)
I believe the answer is:
wag
I believe this is a double definition.
'wave' is the first definition.
(thesaurus)
'card' is the second definition.
(both can mean a humorous person)
(Other definitions for wag that I've seen before include "Comedian" , "Vibrate; jester" , "He must be joking" , "Habitual joker or a wit" , "The wit to move the tail" .)