“Waltuh” became a familiar Breaking Bad meme through online impressions of Mike Ehrmantraut, played by Jonathan Banks, addressing Walter White. The phonetic spelling highlights Mike’s gravelly delivery and has been used in image captions, video edits, voice impressions, and parody dialogue. Its popularity grew from the contrast between Mike’s controlled seriousness and increasingly absurd fan-written lines. The meme remains useful because one word can identify the characters, establish a tense mood, and deliver a punchline without requiring a full scene or lengthy quotation.