Please,someone name this chicano oldie for me finally!?

THE LYRICS STARTS OUT,"I WENT OUT CRUISIN THE OTHER NIGHT,PICKED UP MY RUKA,SHE LOOKED OUT OF SIGHT...",THEN THE CHORUS IS A MEXICAN[SP.]PHRASE THAT BASICALLY IS EASIEST TO EXPLAIN IN ENGLISH AS,"IT WENT UP[REPEAT]",AS IN THE SINGER'S INNUENDO FOR GETTING A *****,I THINK IN SPANISH,IT'S SPELLED, "SEMI[OR SIME OR SEMA ]-PARO".THE SINGER SOUNDS AS IF HE'S AN OLDER CHOLO FROM SOME BARRIO.IT'S A PERVERTED SONG+HELLA FUNNY!PLEASE HELP!