be all mouth and no trousers

US /bi ɔl maʊθ ænd noʊ ˈtraʊzərz/
UK /bi ɔl maʊθ ænd noʊ ˈtraʊzərz/
"be all mouth and no trousers" picture
1.

tylko gadanie bez pokrycia, dużo gadać, mało robić

to talk a lot about what you are going to do but fail to actually do it

:
He's always boasting about his plans, but he's all mouth and no trousers.
Zawsze chwali się swoimi planami, ale to tylko gadanie bez pokrycia.
Don't listen to her promises; she's all mouth and no trousers.
Nie słuchaj jej obietnic; to tylko gadanie bez pokrycia.