A contraction for the phrase 'Back at ya.' Used most often in street language
Person 1(to person 2 who is looking fly)- "You look fly today"

Person 2( to person 1 who is also looking fly)- "Bay"
by CollinE November 16, 2008
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"did you see her bays", "Hey,nice bays", "she had no bays"
by RAFA May 31, 2003
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The best 5 days of the year, if you're one of us lucky I-LYA kids! National US Sailing Quarterfinals...180 kids...1 island & a rule that you aren't even ALLOWED to talk to your parents (so that they don't give you coaching advice, but it's a great rule anyways!)
I CAN'T WAIT 'TIL BAY! Only like 5 more months to wait!
by someone... March 02, 2005
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pairing of bob and ray from mcr
(a form of homo fan_fiction
kate:i was reading a frerard yesterday
jane:yeah i was checking out this bay it was pretty good.
by emoliciouspunkprincess August 02, 2008
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Black Counrty slang meaning ''not'' or ''is not'' or ''is it''
''Bay you driving tonight?''

''No I bay''
by Gregg Reece August 25, 2006
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Means "Back At You"
Girl: You're the best thing that's happened to me, you know that??
Boy: aw BAY baby
by poopoonanafacey August 12, 2018
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Bay is an amazing friend. She is smart and kind. Loving and caring for everyone around her. She is in touch with everyone around her. She makes everyone's day in a single smile. She is beautiful without knowing. She is creative in her own ways. When you get a Bay in your life don't let her go.
Girl 1: I wish my best friend was Bay.

Girl 2: yeah I would be lucky to have her.
by Quotes_for-life! September 16, 2017
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