Goobs

[Becky]

droopy grandpa boobs, usually found on old grandpas, not a pretty site

[Tanya Shivari]

short for gobstoppers.
because each gobstopper is a [goob].

[Donald Trump]

A particularly large and sagging pair of breasts.
Traditionally they will hang to the waist and spread to the sides.
Owners may wish to accentuate theirs with the wearing of a tight rollneck jumper.