Place it right after the confusing line or screenshot in your edit, then follow it with the huh sound for a second beat of disbelief, or the damn meme sound when the confusion turns into a verdict on what just happened.
O tym dźwięku
This is a very short voice clip, just over one second long, built around the phrase wat bakir delivered as a baffled reaction. The delivery sounds caught off guard and confused, which gives listeners a quick hit of awkward humor. It works as a shorthand for not understanding what was just said or what is happening.