Now you in my whip just long as you understand that I can't be with
A whip refers to a vehicle in urban vernacular.
In formal language a whip is a strip of leather, commonly used during intercourse for sadistic purposes.
Therefore with you being in his whip/car, does not at any circumstance entitle you to stimulate him with a whip — alternatively in another urban sense, he cannot be withdrawn from authority in his own vehicle, thus getting whipped/abnegated from his possession
To help improve the meaning of these lyrics, visit “A Kiss” by Bad Meets Evil Lyrics and leave a comment on the lyrics box