Donk bet
A donk bet is a bet made out of position into the player who was the aggressor on the previous street.
The usual play is to check to the raiser. Leading out instead takes the initiative, and makes most sense when the new card favours the caller’s range, such as a card that completes straights.
Related terms
Practise decisions like this in the trainer: ten hands at a time, with the answer and the reason.