Bossism is a 7 letter English word. It's valid Scrabble word worth 11 points. It's valid Words with friends word worth 13 points.
You can make 79 anagrams from letters in bossism (bimosss).
An Americanism dating back to 1880-85; boss1 + -ism
But no one ever resented the old warrior's genial "bossism."