I have no idea what it's called.
I don't know the lyrics that well, but they sound like they're saying "This close to me."
I know it's sung by a female artist, it came out in the mid 90s-early 2000s, it's an R&B or hip hop song and the beat in kinda of like: dadadadada dadada dadada da da da dadadadadadada.
I heard all the time as a kid and if i heard the tune, I'd recognize it. The tune uses an instrument of some kind, it's makes a weird sound and I have no idea want it's called but if I heard it, I'd recognize the song's beat.