A state of total craziness where everything is funny and you feel like you're stoned but that's just your personality. When you are very happy or excited and a little loopy.
• "I just can't calm down man, I've got the jiggies!"
• "Their group is not going to get anything done, just look at them, they've all got the jiggies!
An drunk Irish man who drinks too much and ends up fucking your daughter.
Oi!! Jimmy just pulled a Jiggy Jizz Does the Jagg on my girl Jazz!
A combination of "getting jiggy with it" and "Gnarly". Used to describe a noun as something very cool and hip.
These pizza rolls are jiggy gnar gnar, I can't get enough!