TAKE THE BISCUIT (OR CHIEFLY N. AMER. CAKE)
Meaning of TAKE THE BISCUIT (OR CHIEFLY N. AMER. CAKE) in English
take the biscuit (or chiefly N. Amer. cake)
informal
be the most remarkable or foolish of its kind.
→ biscuit
Concise Oxford English vocab.
Сжатый оксфордский словарь английского языка.
2004