grippin' grain
What does grippin' grain mean?
Driving with both hands on the custom wood-grain steering wheel — the small-diameter, deep-dish wood wheels that replace the factory unit in nearly every Houston slab. So load-bearing in the culture that UGK named a whole album 'Ridin' Dirty' around the imagery, and Z-Ro, Slim Thug and Paul Wall built bars on it. To grip grain is to be in the seat, in the lane, in the lifestyle.
Origin
Houston slab/chopped-and-screwed scene, popularised in tracks by UGK, Paul Wall and Mike Jones in the mid-2000s.