to take something good away from someone.
to
stand in the way of something that will
benefit someone.
to
screw someone that is already doing it tough.
I was buying drinks for this chick all night, and then another guy
swooped in a
Turnbull'd her.
I asked my boss for a payrise, but his managed ended up
Turnbull'n it.
I was one day late making a repayment on my mortgage, and the bank charged me extra fees. They are such Turnbulls.