Meaning of the word "can’t do something for toffee" in English

What does "can’t do something for toffee" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

can’t do something for toffee

US /kænt du ˈsʌmθɪŋ fɔr ˈtɑfi/

UK /kɑːnt du ˈsʌmθɪŋ fɔː ˈtɒfi/

to be very bad at doing something

Example:

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I can't do something for toffee when it comes to cooking.

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He can't do something for toffee at playing the guitar.