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2.
Where you can see only ribs in the middle of a womens chest..
That girl has massive rib tits
by JOOLAN February 22, 2008
 
1.
bruising on the lower ribs from laying prone on a surfboard
Dude, I went surfing yesterday for the first time in a while, and now my rib tits are killing me!
by Kenny Vengeance July 18, 2010
 
3.
Tits that fall to bottom of rib cage (i.e Ella)
Did you see rib tits on that Ella - BOAK
by Hoopythehound May 31, 2013