Sure, I think you could as long as its not insulting to others. If you're talking about an elephant or a truck or something, I think it would be okay. Not many people would use it to insult other...
yes: after counting his earnings, Jack realized that he "banked" $30,000 in profit last year selling houses.
I allowed myself to eat another piece of cake.
I'm sorry, your Honor, the words must remain unarticulated if we are to retain the composure of the court.
Yes you can, for eg. I played monopoly with my cousin Kate or I like to play the game monopoly.