1. One who is so sexy, their sexiness fills up a whole bucket.
2. A bucket of sex, or said sexiness.
3. A bucket containing sexual fluids.
Daaaamn! Laura's such a fine sexbucket!
Have you seen Katrina's sexbucket? Full of SEX!!
Don't trip over Michael's sexbucket.
1. An extremely promiscuous man or woman. Implies a certain level of attractiveness, but can also be a slur.
2. A bucket used for storing sex.
"Oh man, your mum's such a sexbucket, Barry!"