when a girl has huge boobs and they're kinda smushed together, it looks like one giant boob aka an uberboob.

what causes uberboob?
push up or sports bra
a top that's too small
enormous boobs that just dont fit into anything
omg marissa's boobs are so huge, she shouldn't wear that top it gives her an uberboob
by Shanomnom October 19, 2009
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A women with an excessively large boob job.
Oh my god Becky, check out the girl on stair-master. (Gasp) She's an uberboober.
by Rob and Sean January 15, 2008
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A women with an excessively large boob job.
Hey Becky, look at that girl over there (Gasp), she's an Uberboober.
by Rob and Sean January 18, 2008
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