"Up town top ranking;" means being the best - 'up town' is the best area of a town, 'top ranking' is the best of whatever is being described. "Wind up me waist" means to dance, - "Gimme little bass let me ..." - bass is the esseintail ingredient in regaae, producing an instict to move to the sound. "Nah pop no style, I strictly roots..." refers to the ladies being true to their Rastafarian origins, pop music is scorned for lack of substance. The phrase " and ting..." is just a conveesational emphisis used in patois. In addition - "See me in me (h) 'alter back, say me giya 'eart attack" refers to the girls' rebellion in wearing halter back tops, showing bare backs and arms which are deemed unsuitable exposure for Rasta women, and would provoke the "'eart attack" in an older devout Rasta who saw them. "See me in me Benz and ting ..." refers to the image of the girls in a Mercedes, driving down Constant Spring, a main thoroughfare in Kingston. Hope this assists.