1. When a girl leads you on sexually, by teasing, then doesn't actually sleep with you
2. When someone else leads you into a bad situation that only turns out bad for you in the end, and usually good for them
1. Bill "lisa kissed all over me, then when I went to fuck she said it was too soon and left!" Ted "dude, you got rosengoated!"
2. Bill "Man, I told my boy greg about britney being something on the side when my real interest was lisa, then he went and told lisa all about britney, trying to make himself look good" Ted "once again man, greg totally rosengoated you!"