Top Definition
Mess up. Make a mistake. Do something innocently that is in error, such as say the wrong thing.
He really flubbed up on that speech.
by Massive Dynamic March 16, 2012

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to mess up or ruin something, aka 'fucked up'. other alternatives, Flubbup, Flubbedup, Flub up, Flubbed.
Michael you fucking dipshit, you broke the clock!
sorry man, I flubbed up.
by Dj Rock Da House Down August 01, 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