A zebratini is a chocolate martini...they swirl chocolate on the inside of the glass, can't remember exactly what alcohol...I had three of them...they were so good. Wanted to go back the next night...but ran out of time...lol.
I don't know if they serve them at the pool bar. We had been having dinner at Jiko and they were on the dessert menu for an after dinner drink...then we went to the little bar in the waiting area and had a couple more after dinner. Really good, and the bartenders there are great.