IN BRIEF: Something that kills the chances of a good outcome. This is mainly said when competition is involved.

IN BASKETBALL:
-A completed buzzer-beater at the end of the game to take the lead,
-a field goal or free throw made for a team with just enough time for the opposite team to not produce the win or
-if the lead is completely out of reach, "2:00 left" is automatically the dagger.

IN FOOTBALL:
-A completed touchdown, field-goal or a safety at the end of the game to take the lead,
-a touchdown, field goal or safety made for a team with just enough time for the opposite team to not produce the win or
-if the lead is completely out of reach, "2:00 left" is automatically the dagger.

Style with Ease

v - Caribbean term for really rough sex, often imitated while dancing. Think backshot.

n. small form of male genetalia, opposite of Sabre

giving someone daggers means giving them the stare of disapproval. usually its made obvious so the person knows you're not happy with them.

Dagger is when a man is behind a women, the women bends over, and the dude kinda grinds.

A challange between two gentleman, where they joust with their erect dicks.