wet blanket
US /wɛt ˈblæŋkɪt/
UK /wɛt ˈblæŋkɪt/

1.
maruda, smutas
a person who spoils other people's fun by being negative and unenthusiastic
:
•
Don't invite John to the party; he's such a wet blanket.
Nie zapraszaj Johna na imprezę; to taki maruda.
•
She's always being a wet blanket, complaining about everything.
Zawsze jest marudą, narzeka na wszystko.