lump on a log 

Lazy; the act of not doing anything but sitting or laying down on a surface.

Instead of sitting there like a lump on a log, why don't you you outside and watch your brothers?

lump on a log by beauty_and_a_freak June 24, 2010

Lump on a log 

Lump on a log, meaning solid and trusting, will always be there for you.

I can always count on her. Shes a real lump on a log

Lump on a log by Sunshine all day January 19, 2020