The lights that unfortunately come on at the end of the night at the club. This usually alerts the victim that he has spent the last 2 hours talking to a chick that is gross. This surprises the victim who was under the impression that he/she was talking to an attractive girl/guy until the lights came on and made him say... whoa this bitch/dude is ugly. Hence "whoa lights"

the thing that you don’t have when you’re phones percentage is over 20