Top Definition
A shortened version of the not-so-popular way of indicating you are laughing in various text programs, laughing breaths through my nose. This is when you aren't laughing out loud due to tiredness, sickness, not liking the person, or just because the joke wasn't that funny and all you could do was change the pattern of your nose breathing.

The genius of it is that absolutely no one will know what it is unless you tell them. If they ever ask, just respond with a cool "idk" or "nvm" to divert from a colossal mess.
Joe (whom you hate): I didn't get into Yale.
You: lbtmn.

Karen: Cindy! How do you catch a squirrel?
Cindy: I don't know Karen.
Karen: GO UP IN A TREE AND ACT LIKE A NUT!
Cindy: lbtmn.
Karen: What?
Cindy: nvm.
by Maple Ass March 07, 2009

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