boss 1 
(bôs, bŏs)
(bôs, bŏs)n.
1.
a. An employer or supervisor.
b. One who makes decisions or exercises authority.
2. A professional politician who controls a party or a political machine.
tr.v. bossed, boss·ing, boss·es
To give orders to, especially in an arrogant or domineering manner: bossing us around.
adj.
Slang
Slang
First-rate; topnotch.
[Dutch baas, master (from earlier, uncle); akin to Old High German basa, aunt.]