- " 'Pass the kelp tea, please,' Marty asked his daughter. / Marlene pouted behind her own set of vidglasses. / 'No,' she whined, 'I don't want to, so nump off!' / 'Take him out of the game!' Junior [watching the IFL Chicago Bears -v- Spacers game on ESPN - Channel 211-D] pounded his fists on the table. / 'Marlene!' Grandma Lorraine reprimanded sharply. 'Don't talk to your father like that!' / 'Grandma!' Marlene barked, pointing at the word and number display on her vidglasses. 'I'm on the phone, OK?' Marty's daughter looked away, as if no teenager should ever have to put up with this sort of thing."
- —From Back to the Future Part II by Craig Shaw Gardner (quote, pages 84 and 85)
Kelp tea was a tea that the McFly family drank at dinner in 2015, and which Marty asked his daughter Marlene to pass to him. However, Marlene said she didn't want to and told him to "nump off!" Fortunately, Grandma Lorraine stepped in at that moment and told Marlene off about speaking to her father that way.
An article titled KELP PRICE INCREASE was billed in the Newsline column on the front page of the October 22, 2015 issue of USA Today as appearing in Section C, and appeared to be "likely after pollution of South Pacific".
- Kelp tea has yet to appear on the market.
- Back to the Future Part II novelization (First appearance)