i think you mean: i'll sweep you of your feet. it means to affect (a person) with strong emotion or enthusiasm.

it is " i'll sweap you OFF your feat " - "sweep someone off their feet " (verb) to quickly and thoroughly make someone like you, to charm someone Example Sentences: The young man wanted to sweep the pretty girl off her feet, so he walked up to her and told her she was the most beautiful woman in the world. A: I have a new boyfriend, he’s so handsome! B: Where did you meet? A: He is my English teacher. He is so nice, and kind, and he swept me off my feet when he told me I was the most beautiful student he has ever had!

According to Hitch (buy the DVD or p2p it it's a pretty good movie) it means charm her so she falls in love with you, and it's "sweep a woman off her feet" finally, why don't you use google for such questions ?