The 18-year-old was left 'gobsmacked' after being asked the question and others, including: 'Would you rather s*** a brick or cry glass?'
The interview took place at a TGI Fridays branch in Derby's Intu shopping centre last week, and was for a part-time weekend role.
The teenager, who lives in the Chellaston area of the city, said: 'It was a quick and open interview in the restaurant which is what I had been told would happen.
'I'd already had a successful phone interview and I was really looking forward to this.
He said: 'Before I'd had chance to respond I was asked whether I would rather eat chocolate flavoured s*** or s*** flavoured chocolate.
'He seemed to think I would find it funny and join in. 'I thought it was disgusting, sick and pathetic. I left the interview at that point.'
A spokesman for TGI Fridays said: 'Fridays offers an industry-leading recruitment process, and this incident fell severely below our high standards.
'The questions posed during the interview with the candidate are absolutely not part of TGI Fridays interview process and we were very disappointed to learn of this incident. Immediate action was taken, with the person involved suspended.