Being forced to dance at a bar or night club despite repeated saying no by your girlfriend or an otherwise unusually hot woman you think you have a chance with.
I was so drunk last night and didn't want to dance at all, but then my girlfriend forced me to dance by threatening to not have sex with me if I didn't go with her. She totally dance raped me.
Grinding against/lapdancing a person without their consent.
F.E.: And so Ben Galtiger got dance raped about three times at the rave last night... did you see that?