In Les Parent, the youngest son Zak doesn’t want to call his mother maman anymore. He wants to call her by her name: Natalie.
Natalie doesn’t like this idea at all, and she insists that her son Zak continue to call her maman.
So Zak tells her that his older brother Oli thinks that it’s silly (nono) to call her maman. Zak explains to her:
Oli dit que c’est nono quand on t’appelle « maman » parce que c’est pas ton nom, c’est ta fonction.
The sons in Les Parent are often very direct with their arguments to try to get their way with their parents, which is what makes the humour of the series.
c’est nono
it’s silly
[Quote from Les Parent, “Note de passage : 0,08 %,” season 4, episode 19, Radio-Canada, Montreal, 5 March 2012.]