wet blanket

US /wɛt ˈblæŋkɪt/
UK /wɛt ˈblæŋkɪt/
"wet blanket" picture
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.