Jag’in 

The act of repeatedly sabotaging one’s own self-interests.

I can’t believe Jacksonville keeps jag’in up these coaching hires.

Jag’in by DaMillionDollarVoice January 31, 2022

Jag äter inte glass 

The swedish phrase for "I won't eat ice cream" meaning you're a noob in many ways. Created by Lord Anton Pinét Magnusson.

Jag är ingen pedofil, jag äter inte glass!
(I'm no pedophile, cause i won't eat ice cream!)

Jag äter inte glass by TheoLA98 August 6, 2010

Jackin ina Jag 

Despite the common meaning at first glance this phrase doesn't use jackin synonymous for stealing, as one might originally think, but in reality, masturbation.

To Jack ina Jag is to masturbate in an upper echelon high speed vehicle to show off presumably newly attended levels of wealth.

"I just got a bag from this court case, I'm finna go jackin ina jag now"

or
"I ain't neva going to jack ina jag with these hours, I need to get my bread up"

Jackin ina Jag by ToxicSandwiches April 6, 2023

Jagin 

a descriptive word for a person or thing that is cool, hot, awesome, or interesting. It can also be used in the slang "Jag" not like the old term meaning irritating individual.

That girl is jagin. I would tap that any time

Jagin by rlorimer April 14, 2011

jagina 

When a guy can fit his whole fist in a girls vagina

Quinn fists Kalli and ends up with her having a jagina

jagina by Quinn is a cheating asshole December 28, 2013