All hat and no cattle

An American idiom that refers to a person who is all talk but lacks “action, authority, power, or substance”. You may also hear people say, “all hat and no cows.”

Related idioms: all bark and no bite, all talk and no action, all lime and salt, but no tequila, all shot and no powder, all   wax and no wick

 

 

What other idioms mean the same thing as ‘all hat and no cattle’?

Source: http://en.wiktionary.org