Joke, silly trick (5)
I believe the answer is:
prank
(Other definitions for prank that I've seen before include "Mischievous act done for fun and amusement" , "April fool" , "High-spirited mischief" , "Lark" , "Practical joke or trick" .)
I believe the answer is:
prank
(Other definitions for prank that I've seen before include "Mischievous act done for fun and amusement" , "April fool" , "High-spirited mischief" , "Lark" , "Practical joke or trick" .)