The 'Small Cylinder Guy' meme refers to a viral Reddit thread from late 2022 where user Smart_Calendar1874 desperately sought advice for a 'small cylinder' stuck inside an M&M's Minis tube filled with butter and microwaved mashed bananas. Despite the user's adamant and increasingly frantic insistence that the object was merely a 'cylinder' and not a body part, the community immediately turned the absurd denial into a legendary piece of internet history. The meme is now used to mock people who tell obvious, weirdly specific lies or to reference the hilariously clinical way the user described his predicament to avoid admission of guilt or embarrassment.