Yes, there are control arm bushes, aka thrust arm bushings.

There are also sway bar ends that would be a better guess.

But there could be a half-dozen things that 'cause a popping noise over a slow speed bump...you need to get it up in the air, Jack won't do it- the whole axle needs to be unladen to really be able to flex the bushes...with one wheel down the sway bar will load the lifted side.