He talks a big game, but he's all mouth and no action
She promised to help, but then she was all mouth and no follow-through
Don't just be all mouth; show us what you can do
They threatened to strike, but they were all mouth and no intention of actually stopping work
He's always complaining about the system, but he's all mouth and never does anything to change it
The politician was accused of being all mouth and no substance during the debate
She's tired of his excuses; he's just all mouth
I'm not impressed by your threats; you're all mouth
He likes to brag about his achievements, but honestly, he's all mouth
They assured us it would be easy, but it turned out they were all mouth
You said you would help, but you seem to be all mouth.
I'm planning the steps, it's not as simple as you think.
Actions speak louder than words, remember that.
He's all mouth and no action, as usual
He talks a lot but never does anything
His words are empty; he's full of promises