Top Definition
Australian rhyming slang used to describe a male getting so excited over something or someone that he gets an erection, or fat. A larrikin is a likeable rogue while an erect penis resembles a hat, hence the term larrikin's hat.
I couldn't help getting a larrikin's hat every time I looked at it.
by wardswords November 25, 2016

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Aussie rhyming slang for fat, as in erection. A larrikin is a lovable hooligan; a hat is something worn on the head.
Trevor: Jeeze, I get a larrikin's hat just thinking about Britney pissing on me.
by Sheepshagger July 26, 2006

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt