The jidhir of today's word is the red Joker in a pack of playing cards
(the Kuwaitis call cards "janjifah" which is a word only used in Kuwait.
In neighbouring Saudi Arabia, they refer to cards as waraq, or "papers".)

Intriguingly, the black Joker is referred to in Kuwaiti as maykar.

So if some unfortunate person is described as jaykar, a response might be:
"jaykar wala maykar? هههههه"

جذر jidhir Origin, root
ميكر maykar Black Joker
ولا wala Or
هههههه hahahahahaha Hahahahahaha