Place it right after the moment someone takes something, then follow it with a reaction sound for disbelief, such as the Bruh sound, before cutting to the owner's response. For a bigger joke, add the Emotional Damage sound after the reaction to stretch the payoff before the owner answers back.
About this sound
This is a short Indonesian spoken meme line lasting about three seconds, delivered in a confident, teasing voice that turns the phrase 'barang siapa, barang gue' into a playful claim of ownership. It feels cheeky and light, like a quick joke between friends rather than a serious statement, and it works best as a sudden, self-assured reply when someone questions whose thing something is.