lap dog

noun2

1. •
   A small toy dog, kept as household pet, whose light weight and companionable temperament make it both suited and disposed to spend time resting in the comfort of its master's lap; a dog bred to behave in this manner.

   • A lady loses her muff, her fan, or her lap-dog, and so the silly poet runs home to versify the disaster. — 1766
2. •
   (figurative) A person who behaves in a servile manner, such as a sycophantic employee or a fawning lover.

   • As a lady's lap-dog Leonard did not excel. He was not an Italian, still less a Frenchman. — 1908