A dinner jacket or tuxedo.

Because the wearer looks like a penguin in it. Simples.
I need to hire a penguin suit for the wedding.
by rodinuk July 26, 2010
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Often confused with two chickens in some pants, it is in fact two penguins- Topsy and Bertram- in a suit, also known as (aka) the mod Avid Spark
Gamer 1: What's up with that mod?
Gamer 2: He's two penguins in a suit.
Gamer 1: Oh, that explains it.
by Notintoracism December 20, 2010
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