Marc ... -200! - for making Stalin Italiano. Or is it a cruise line version of broccolini?
{edit: Well, you know, that makes sense - a three portmanteau word - except the answer said only one 20th century fascist dictator.}
Seadog ... +200! - welcome to the fight. This time I know our side will win.
Scoreboard:
  Â
Fogmalkin: +1100Â Â Â
Davefr: +502Â Â Â
Marc: +500Â
  Â
Freddie: +410Â Â Â
Mrs. Marc: +300Â
  Â
Seadog: +200Â
  Â
Ms Understood: -200Â
Answer:
four r's and two o's line and what makes the "maid of the mist" misty