Jee-lous Share definition Flag Jeelous-(Pronounced Jee-l-ow-s) Like jealous, only ten times more the intensity! Like an extreme form of jealous. "Oh my gosh Kaylah got the iphone! I am so jee-luous!""She stole my BF, now I am jee-lous and I will totally fight her! Jee-lous by A-kay47! March 3, 2010 Get the Jee-lous mug.