2 definitions by KatyM

The short term for Whiny Little Bitch. Used to describe people who complain too much. Often said under the breath while rolling ones eyes. Frequently uttered by exasperated girlfriends.
Boyfriend: But I don't want to go downtown tonight. It's too expensive, and there's nowhere to park.

Girlfriend: WLB, sweetie. WLB.
by KatyM February 3, 2008
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This is the evil part of your brain in the morning that tries to trick you into sleeping in. It often attempts to fool you into thinking you've already woken up by making you dream about getting ready for work.
Dude, I'm late for work! I think Sleep Brain turned off my alarm this morning, cuz I don't remember doing it.
by KatyM February 3, 2008
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