(figuratively, humorous) A notional card that can suddenly reverse a situation when played.

In certain conditions, a spinning ball deflects in a direction contrasting to that predicted direction by the Magnus effect.

Synonym of muscle dysmorphia

Violence committed by one member of a family or household against another where the abuser is considered weaker than the victim.

(arithmetic) an arithmetic notation in which numbers precede the operators to be applied to them.

(poker) The odds offered by the amount one stands to lose in future betting when one has the worst hand against the amount one stands to win when one has the best hand.

A sex position in which the man lies on his back, and the woman sits on top of him facing towards his feet.

plural of reverse cowgirl position

plural of time reversal

A form of joke that reverses the subject and object of an ordinary statement, claiming to describe the situation in Soviet Russia, e.g. "In Soviet Russia, television watches you!"