Phrase used when referring to a female's (human) breasts, often construed as sexist or inappropriate. The breasts themselves needn’t be of any specific size or type, are only required to be tangible and/or able to be slapped lightly in a playful manner. Meant to be appraised yet ridiculed at the same time. See boobs
"Get a load ah them milk bladders. Oh shit."
"Bobbie's baby will never go hungry... just take a look at those God damn milk bladders."