Top definition
Nipples poking through a chick's shirt. Back in the day, B-52 bombers carrying nuclear weapons had a process whereby they would flip some switches to arm their bombs. Above each switch was a raised bulb that would light up when the bombs were ready to explode if dropped. A bombardier would say "Ready lights on" as a way to let everyone else know that he was ready to do some damage. The expression then came to be a way for aircraft personnel to call attention to nipples showing up the way ready lights would.
I didn't think it was cold out today, but that chick has her ready lights on.
by Craig56 April 18, 2007
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