If you thought Rihanna's foul language at the MTV Video Music Awards last night (Sept. 6) was reserved only for her performance of 'Cockiness (Love It),' you were wrong. The starlet allegedly had a choice word for rapper Drake as he took the stage to accept his Best Hip-Hop Video moonman.

TMZ played back some footage from the awards, and when Drake began thanking everyone for his 'HYFR' win, former fling RiRi, sitting in the front row with her BFF Katy Perry, can be seen mouthing what many believed to be a not-so-nice word. Katy herself actually looks a little taken aback by language, evidenced by the pretty hilarious face she makes.

Considering that Drizzy has allegedly dissed Rihanna in quite a few tracks (as well as on Twitter), it's not that surprising that she'd have some nasty words for her 'Take Care' collaborator. Another possible reason for the animosity? RiRi was spotted smooching Chris Brown at the event, and he and Drizzy notoriously got into an expensive bottle-busting brawl -- supposedly over Rihanna -- that host Kevin Hart mocked in his opening monologue.

Rihanna got the last laugh, anyway. The starlet went home with the night's biggest award, Video of the Year, for 'We Found Love' -- whose video was supposedly inspired by her tumultuous and often toxic relationship with Breezy. Despite rumors that she and Drake were "quietly dating" last year, there's very little that's actually quiet about these two -- it seems like drama, drama, drama!