Jokes around
'jokes around' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for jests that I've seen before include "Witty remarks, quips" , "Makes a joke" , "Playful pranks" , "Jokes, japes" .)
(Other definitions for kids that I've seen before include "Youngsters" , "They make immature butts" , "Children" , "Young goats" , "Teases" .)