Green’s Dictionary of Slang

1. to abuse.

2003

McGill Reed Dict. of N.Z. Sl. 169: raped on A put down, to a modern teenager, eg, ‘The new maths teacher must have raped on everybody in the class in the first week.’.

2. to diminish the effects of; to reduce someone’s pleasure; thus raper n.

1990		Eble Campus Sl. Nov.
1996		Eble Sl. and Sociability 55: Rape can mean ‘put a damper on things’, as in ‘Man, are you doing anything special – are we raping you?’.
1998		Eble Campus Sl. Nov. 5: raper – someone who is negative.

3. to misuse, to steal.

1991

Eble Campus Sl. Fall 5: rape one’s visa – overuse one’s credit card.

4. to defeat.

1992		Eble Campus Sl. Apr. 8: raped – beaten badly in a game.
2003		Eble Campus Sl. Nov. 2: clown – defeat to the point of embarrassment [...] Also rape.
2014		BBC World News 3 Mar. [radio] You hear ‘I raped that exam’ or conversely ‘that exam raped me’.