a person who spends time with rich or important people, hoping to get an advantage.

Wherever there is Royalty, there will always be hangers-on. (usually plural)

• put the ball in someone's court
• put the bite on
• put the bite on someone
• put the boot in
• put the brakes on
• put the brakes on someone
• put the brakes on something
• put the cart before the horse
• put the cat among the pigeons
• put the clock back
• put the fear of God into
• put the fear of God into someone
• put the finger on
• put the finger on someone
• Put the flags out!
• put the genie back in the bottle
• put the heat on
• put the heat on someone
• put their heads together
• put the kibosh on
• put the kibosh on something
• put the knife in
• put the lid on
• put the lid on something
• put the pedal to the metal