toffee
/ˈtɔfɪ; ?@ ˈtɔ:fɪ; `tɔfɪ/ (US also taffy / ˈtfɪ; `tæfɪ/) n [C, U]
1 (piece of) hard sticky sweet made by heating sugar, butter, etc （一块）太妃糖（用食糖与黄油等加热後制成的黏性硬糖果）.
2 (idm 习语) can't do sth for `toffee (infml 口) lack the skill or ability needed to do sth 没本事做某事; 不能胜任某事
She can't sing for toffee! 她根本不会唱歌!