You make a beat like you normally would, then you assign the kick track to a separate FX channel which you probably do already anyway. And If you are using FL studio you might need to download a "tape stop" effect, or better yet you can use Gross beat to make a tape stop effect. Because it is the tape stop which is making the bass drop that sliding sound with the slight phase. I can't go anymore in depth without actually showing you. I haven't had time to really make any beat videos like I would want but I'll keep that on my mind to try and do something for it as soon as I get some free time.