biscuit (biscuits plural )
1 n-count A biscuit is a small flat cake that is crisp and usually sweet.
(BRIT)
in AM, use cookie
2 n-count A biscuit is a small round dry cake that is made with baking powder, baking soda, or yeast.
(AM)
3 If someone has done something very stupid, rude, or selfish, you can say that they take the biscuit or that what they have done takes the biscuit, to emphasize your surprise at their behaviour.
(BRIT)
♦
take the biscuit phrase
(emphasis)
in AM, use take the cake