Focused on what he called 'disposable pop culture', the title will feature fashion, beauty, music, food and sex.
Flynn said: 'We want to create a culture around Trash on the idea that you love it now, but you might not tomorrow. There are not going to be tons of product pages, but we will be going from the lowest low to the highest high, from Pot Noodles to Fendi. '
In addition to Flynn and editor-in-chief Rachel Newsome, the title's editiorial team has now been put together.
Fashion director is Corinne Day, and she will co-ordinate content from The Guardian's Charlie Porter and Bethan Cole of The Sunday Times's Style magazine, who will write on 'boys' style' and 'girls' style' respectively, according to Flynn.
Beauty editor is Sarah Hay, Paul Louis is in charge of food and drink, while Garry Mulholland oversees music. Aimed at 20 to 35-year-olds, Trash is to be published every other month.