Place it as the closing beat of a stealth sequence, with an enemy spotted alert just before the reveal and this clip landing immediately after. Pair it afterwards with a nope reaction when the opponent tries to answer back in the edit.
Über diesen Sound
This is a sub-second voice clip of the Spy delivering the line 'YOUR MOTHER' in his dry, cutting tone. It lands as a blunt, cheeky insult that feels both smug and absurdly over-serious for such a short phrase. The line comes from the Spy character in Team Fortress 2, where it is used as a taunting retort.