The state of being after a loved one has died, or in some cases after a unintentional breakup, such as someone moving away. Denotes an attempt to cling to whats lost.
He's been a one headlight ever since she died.
by Captain Kevo February 20, 2009
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when it's cold outside and one nipple decides to go out and the other decides to stay in

consistent until breast feeding.
Girl, its chilly outside, you got one headlight out.
Somebody call the cops, you got one headlight out, baby!
by Dana Ryan Nelson Josserand March 15, 2008
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