A paper or plastic container (not necessarily a bag) used to package the leftovers of a diner's meal at a restaurant so that they may take it home to eat later. The servings here are so huge that I always have to ask for a doggy bag at the end of the night!

slang Describing the manner of sexual intercourse in which one partner (typically a male) penetrates the other from behind. But have you ever guys done it doggy style?