An evil being sent by Martians to destroy earth. Poodles are not dogs, contrary to popular belief, but are actually a relative of the spotted hyena. Poodles are generally quite small and armed with their hideous high-pitched yapping and razor-sharp teeth.
To take advantage of a friend with a higher income so that they will pay your way for lunch, movie tickets, etc. This can either be with prior notification (notifying the friend that they are about to be the recipient of this action) or it can be a surprise poodling, such as when you seem to have forgotten your wallet when the bill arrives.