An overweight person with an inability to keep a secret
"I can't share my chocolate cake recipe with you. You are way too blabby!"
by Jasynchronous August 12, 2017
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A term used by hoes, thots and the like to describe a nigga who they actually have feelings for now when at first they had only wanted him for his bigass humungo cock.
"Yo, my blabby dick said he wanted to take shit to the next level!"

"Ayy boo! I'm glad fo you!" *sighs*
"My nigga's still just Blahby Dick. I'm waiting for his ass to get likeable, cuz I want a man who I can keep. I already got like 50 Side Dicks!"
by The_Thot_Whisperer420 January 5, 2017
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When a girl puts her period blood in a pan and bakes it into an oven.
Blabby Muffin-I have no fuckin idea what I ate, but it was red, moist and mushy
by Hooray For Boobies!!!! August 6, 2008
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Blabby, is a common phrase in the MMO GTA IV, A black lady that says it usually when harassed or scared.
by JohnCroxon August 12, 2017
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