A Big Betty is a really fat woman who never baths/showers, doesn't shave, and sleeps around.
omfg that girl over there is such a big betty!
by emoXlove6996 December 23, 2014
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Due to the Kardashian influence on society which has lead to a mass fetish for large asses, what has come to be known as a “Big Butt Betty” is a woman who spreads her cheeks to take multiple cumshots during a circle jerk. Usually in the middle of a Dirty Stephen session.
My mates and I blasted our loads all over that Big Butt Betty when Goku went Super Saiyan and covered her crack like a toaster strudel.
by Caughtaban March 07, 2019
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A name for a female who has extremely large breasts, or in some cases can be joked around using a guy as the argument.
Guy1: That group of chicks from IONA are a bunch of big tit bettys (BTB's). I wouldn't mind titty fucking one of them.
Guy2: Yer, no shit.

Guy1: I saw this porn the other night, this chick had massive tits.
Guy2: Yet another big tit betty (BTB) making it big in the porn industry.
Guy1: Huh? Shut up.

Guy1: During PE that guy Crockster took off his shirt and damn, he is one massive BTB.
Guy2: Gross dude.
by Mummas September 04, 2005
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A beautiful busty blonde. Must be a daaaaaaaaaamn! On breast must be at least a D cup. Mainly beautiful German girls.
by SGT ROBO-COP March 28, 2014
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