Matt Berry plays Laszlo Cravensworth in What We Do in the Shadows, the FX comedy series that ran from 2019 to 2024 and was based on the 2014 film by Jemaine Clement and Taika Waititi. Laszlo's blunt, old fashioned swearing became one of the show's running jokes, and short lines like this were clipped and shared as reaction sounds online. Berry's background in shows like The IT Crowd and Toast of London helped make his delivery instantly recognisable, which is why the phrase keeps circulating long after broadcast.
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Matt Berry as Laszlo in What We Do in the Shadows saying dry as a nun in his deadpan voice, used as a reaction for awkward, crude or uncomfortable moments.
This is Matt Berry as Laszlo Cravensworth delivering the crude simile dry as a nun with complete, aristocratic seriousness. His rich, theatrical voice stretches the line out slowly, turning a vulgar comparison into a formal pronouncement. There is no music or buildup, just that unmistakable deadpan delivery landing flat and dry, which is exactly the joke. The contrast between the posh vampire character and the filthy phrase makes it instantly quotable, and the clip works because Berry never sounds like he is trying to be funny at all.