Are you flash? If you've got it, do you flaunt it?
Do you display your roll of bank notes at every opportunity, or brandish your super-platinum Amex card in the most public way possible?
Do you have a personalised number plate?
Do you drive your car lying down?
Are your shoes bitterly uncomfortable?
Does your neck ache from the weight of the gold hanging round it?
Well, you'll just have to rely on flashing past someone at speed, or having a flash of genius, won't you?
I suppose I've got a chance of the former if I can spot a very very old person going for a walk.
Thing To Do Or Be Today: flash. This word started off meaning to rush in the way a flash flood rushes; but where it came from before that is a mystery.