Half ass'n nine out of ten results in
Crashing, ya drive, pump breaks ya halting
Not putting in 100% effort will result in you not succeeding in your goals.
He uses a driving metaphor. Drive is the setting, crashing is the result, and braking is response.
To help improve the meaning of these lyrics, visit "Paralyzed" by Oddisee Lyrics and leave a comment on the lyrics box