Definitions by Mr. Poopoo bear

Zweebac

1. A zebra's shit
2. A zebra's semen
3. A zebra's uterus lining
4. A person who is sexually attracted to zebras.

John: Ewwwww, look at that zebra's zweebac!
Harry: I personally think it's kinda hot!
John: You're a zweebac!