double d
A breast size that most men seem to believe are enormous basketball tits.  In reality, the size of the breast depends on the size of the woman.  But they are larger than a handful.  Even for people with behemoth hands.
You banged a double d?  Her tits must have been huge!

No, actually, they weren't like, the size of my head or anything.  But there were larger than a handful, in spite of my behemoth hands.