G'Checkin' - Seeing if someone is a real gangster by making them prove it

Seeing if someone is a real gangster by making them prove it with some real dirt or some real threats.

I told him to 'G'Checkin' and he had to tell me where the last body was buried.

She said she was a gangster, so I asked her to name the person who did her.

He wouldn't stop talkin' till I made him 'G'Checkin' and he told me his homie was in jail.