A: hey, I heard that when you're dead, your children will sell all your stamp collections on an auction house.
B: When that time comes, they can do with it whatever they like, for all I care.
an expression used (normally when you are angry at someone)to show that you have no intention of reacting to their annoying or terrorizing behavior
see also like i care, so?, whatever, i don't care and what's your point?
suzie: ha ha i threw your books on the floor and im not picking them up
boberta: see if i care