Idiom:

put a bug in your ear ( remind )

Hit the book:

Dub

Sponge

Boomerang kids

Handout

Mortgage

Commonplace

Surge

Tap

Roll up your sleeves

Poky

Augment

It's been dubbed the Sponge Society—a generation where so-called boomerang kids return to the no-rent haven of the family home well into their thirties and a growing number of adult children receive financial handouts from their folks.