The exact original recording behind this clip is not widely documented, which is common for short meme audio shared across soundboards and social video. Online, the phrase that's my baby works as a flexible reaction, because it can be sincere, ironic, or proudly exaggerated depending on the clip underneath it. Creators reuse it for pets, children, friends, and in-game characters, turning a simple claim of affection into a joke about pride. Its short length and instantly clear meaning help it keep circulating in reaction edits and compilations.