Top definition
(n)
refers to an obese person. the said person can sometimes be very bitchy when not fed their cake. calling someone a 'cake vacuum' implies that, if a cake were given to them, they would inhale it as if there was no tomorrow.

shortens to cake vac
person 1: Fatty over there is such a cake vacuum. he already ate the entire cake that was for the whole party.
person 2: what a fat ass...
by fat person December 20, 2007
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