Top Definition
Being on the same wavelength as someone, being mentally in-synch with someone, or working really well together.
My GF and I were just not gelling today. She wasn't getting any of my jokes.
by mangodaiquiri October 01, 2009

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Another word for masturbating
Guy 1: Hey dude, what were you just doing in there?

Guy 2: Ah, nothing. Just gelling.

Guy 1: I see. I might go do some gelling later too.
by A mothafuckkin starfish December 20, 2013

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
If you are *not* wearing Doctor Sholls extra soft insoles then you tell others you are "gellin'"
"Im gellin"
"dude, your so not gellin'
by backstab.net September 07, 2003

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