Top Definition
Excessive cottonmouth due to the inhalation of the sweet sweet ganja.
"Dude, that last rip gave me hella butterlung."
by Devin H. September 30, 2005

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When the smell of buttery popcorn is so overwhelming that it seems to attach itself to your nostrils, mouth, and lungs. The smell seems to float around like a gaseous poison. This occurs most often at run down discount movie theaters with poor ventilation.
"Open a window! That stale popcorn is giving me a case of butterlung."
by Rocko780 March 16, 2016

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

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

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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