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1.
A girl that does not care for love or does not get hurt by love. Easily gets over it. Also known to be good at breaking hearts.
Sarah is a lullaby haze for she didn't give a fuck when Devon dumped her.
by byghis23 December 09, 2009
 
2.
a state of confusion, especially post-break up; feeling confused rather than immediate rejection, hurt, or broken-hearted
A: "You two broke up?! Holy fuck are you okay?"
B: "Yeah, mostly I'm just in lullaby haze... I don't understand, I thought we were lyke perf3ct toghetharrrz..!1"
by M0S December 27, 2010