toffee
noun [ C or U ] uk/ˈtɒf.i/ us/ˈtɑː.fi/
乳脂糖，太妃糖
a hard, chewy, often brown sweet that is made from sugar boiled with butter
Idiom
for toffeeidiom UK informal 根本（不会），一点儿（都不会）
If you say that someone cannot do something for toffee, you mean that they are extremely bad at it.
He can't paint for toffee! 他根本不会画画！