On God is a phrase which is a way of saying that someone is telling the truth. Similar to another phrase such as "I swear to God." Other common uses are "On my mom," "On my grandma," "On my grandpa," "On gang," etc...
Person 1: I whipped out of that parking lot so fast, spinning the wheel, I 'bout flipped the damn car over. Then the police started following me, and I had to run away.
Person 2: Really?
Person 1: On God, bruh."
Person 2: Really?
Person 1: On God, bruh."
by piercethegreenbridesveil January 07, 2017
Julio: Whatup Folk...that girls booty is thick.
Kyle: Yeah right nigga she aint got shit on god she dont
Kyle: Yeah right nigga she aint got shit on god she dont
by GeT'Mo.ChEdDa December 18, 2008
When white people say "My hood lingo isn't up to par." and you have to tell it to them straight, "On god bro these niggas be trippin."
by Guardian Asian January 14, 2019
by Jeepers/ Figgle my nippers February 02, 2019
by KingBrush January 09, 2021
A phrase used to describe something so honest you're swearing upon God's name.
I swear on God = On God
I swear on God = On God
by HollabackGirl July 22, 2013
by lilm11ka May 05, 2020