gathering value

Leaving an object to increase in wealth.

also used as an insultive term for someone's laziness or uselessness. As if completing a task that the object relates to is so absurd to the person it border lines on ridiculous incomprehension (a.k.a extreme redonkulessness)

Katie:Why has'nt Bruce mowed the lawn?
Emma:Because it's gathering value.
Katie:Oh Ok.
Emma:He is such a dead shit!