Top Definition
The overwhelming and sudden sensation of elation that washes over someone upon gazing at a particularly clever or insightful #hashtag on a social media posting (e.g., Twitter, Facebook, et al)
When I saw Sondra's tweet was hashtagged #whocaresaboutemailwhenthegiantsareintheseries I nearly had a hashtag-gasm! Go Giants!
by SA92663 October 29, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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