Nowadays lace a whole seven in a sitting
A seven he’s referring to is a set, 7 grams of weed. People typically buy 1/3.5/7/14/28 grams of weed depending on how much they want obviously. 7 grams of weed smoked in one sitting will get you pretty baked.
To help improve the meaning of these lyrics, visit "Grown Up" by Danny Brown Lyrics and leave a comment on the lyrics box