Top definition
A fat women so fat fat fat you can't tell shes pregnant from all the fat.
Guy 1: Yo, did you hear about Bertha?

Guy 2: No man what's up?

Guy 1: Shes Preggo dude.

Guy 2: Holy shit dude, I cant ever tell. She's gone Decepticon Status.
Guy1+Guy2: BERTHATRON.
by dorktron March 01, 2011
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